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Mass violence & crisis events

When violence shakes a community, it can shake each of us. Your reactions make sense, and no one has to heal alone.

⏱ 7 min read📑 11 sections📚 25 sources✅ Reviewed October 2026

By the numbers

How far the impact reaches, and how many people recover.

United States

79%of U.S. adults said they feel stress about the possibility of a mass shooting (APA survey, 2019).
1 in 3U.S. adults said fear of a mass shooting stops them from going to certain places or events (2019).
24%of U.S. adults said they had changed how they live their lives because of this fear (2019).
28% vs 16%of parents of children under 18 reported frequent or constant stress about mass shootings, compared with adults without minor children (2019).

Media

6+ hoursa day of news coverage in the week after a 2013 bombing was linked to more acute stress than being there in person, in a study of 4,675 U.S. adults.
17.4%of people who repeatedly watched disaster images after the 2001 attacks had probable post-traumatic stress, higher than those who didn’t.

Recovery

40–78%of people exposed to mass violence and other traumatic events have few or no lasting symptoms over time.
A minorityof survivors go on to have long-lasting conditions. Most reactions ease with time and support.
49research articles on 15 mass shootings were reviewed in one study. Fears and a lower sense of safety spread well beyond the people who were there.
Numbers describe groups, not you. Whatever you’re feeling, you deserve care.

When violence shakes a community

Gentle support after shootings, attacks and other shocking events.

Mass violence, like a shooting or an attack, can shake a whole community and a whole country. People who were there, people who lost loved ones, first responders, and people who only saw it on the news can all be deeply affected.

This guide stays gentle and avoids details on purpose. If you are struggling right now, it’s okay to skip ahead to “When and where to get help”.
🌀 Ripples of impactThe closer you were, the stronger the impact tends to be.
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Research finds mass shootings are linked to harm for survivors and for members of affected communities. People less directly exposed often feel at least short-term increases in fear and a lower sense of safety.

SAMHSA describes three things that shape reactions: how direct and severe the exposure was, what life was like before, and what happens afterwards, like stress, losses and support.

You don’t have to have been there to be affected. Grief and fear can spread through communities.
💔 What can be lostLives, but also safety, trust and the feeling of a normal day.
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SAMHSA notes that when community violence happens, people may lose their sense of safety, their trust in neighbors, or their trust in local leaders, as well as people they love.

Many people feel unsafe in places that used to feel ordinary, like a school, store or place of worship.

🧩 A word about blame and stigmaMental health conditions are not the cause of most violence.
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SAMHSA notes it is a common misconception that people with mental health conditions are responsible for most mass violence. Research contradicts this. Most people with serious mental illness are never violent toward others.

Asking for mental health support after a tragedy is a strength. It doesn’t make anyone dangerous.
📚 Other guides that can helpRelated guides in this app.
Read more
  • Difficult life experiences: survivor’s guilt and community violence
  • Grief: caring for yourself after losing someone
  • Natural & climate disasters: when the crisis is a storm, fire or flood
  • Trauma & PTSD: when reactions last or get in the way of life

Common reactions

Shock, fear, grief, anger, numbness, or feeling unsafe in public.

After a violent event, people often feel jumpy, on guard, sad, angry or numb. Sleep and concentration can suffer. These reactions are common and usually ease with time.

🫀 In your bodyRacing heart, headaches, stomach upset, tiredness.
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SAMHSA lists reactions like

  • Chest pain or a racing heart
  • Dizziness, chills or sweating
  • Headaches
  • Shallow breathing
  • Stomach changes
  • Tiredness and trouble sleeping
If you have chest pain or trouble breathing, get medical care. Don’t assume it’s just stress.
😢 In your feelingsShock, fear, sadness, grief, anger.
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Common feelings

  • Anger, even rage
  • Anxiety and fear
  • Grief and sadness
  • Guilt or shame
  • Shock, disbelief or numbness

SAMHSA says some people feel empty, numb or detached, or become short-tempered with others, even without a clear reason.

🧠 In your thoughtsConfusion, poor focus, replaying what happened.
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Confusion, trouble concentrating, memory slips and the event replaying in your mind are common in the early days.

Many people keep asking “why?” There may never be an answer that feels good enough, and that can be one of the hardest parts.

🚪 In what you doJumpiness, avoiding places, sleeping badly.
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Being jumpy, having nightmares and avoiding reminders are common. Some people drink or use more to cope, which can make things harder over time.

Avoiding crowds or certain places can feel protective at first. If it starts shrinking your life, it’s a good time to talk to someone.

🕯️ In your faith and meaningDoubt, emptiness, or questioning everything.
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SAMHSA notes spiritual reactions too: a loss of meaning, doubt, mistrust, cynicism or a crisis of faith.

For others, faith and community become a deep source of comfort. Both experiences are human.

🛤️ How reactions change over timeShock first, then fear and anger, then slowly coming to terms.
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SAMHSA describes three phases

  • Early on: shock, disbelief and denial
  • In the following weeks: fear, anger, anxiety, poor sleep, trouble focusing at work or school, low mood
  • Long term: coming to terms with what happened, with good stretches and harder ones

Most survivors do not develop long-term conditions, thanks to resilience and support.

These reactions are not a diagnosis. Only a qualified professional can assess what’s going on for you. Please talk to your clinical provider or therapist if you’re worried.

Survivors, families, witnesses and the wider community

Everyone’s experience is different. Tap any card.

Research has found that being closer to an attack, knowing someone who died, and having less support can all raise the risk of longer-lasting distress.

🩹 People who were thereSurvivors, including those who were injured.
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NCTSN notes that survivors may face physical injury and long rehabilitation, involvement in police investigations, and worry about the safety of family and friends, all on top of the shock itself.

Some survivors feel guilty for living or for not doing more. The Difficult life experiences guide has a full section on survivor’s guilt.

However you reacted in the moment, you did what your body and mind did to survive.
🕯️ Families who lost someoneSudden, violent loss brings a heavy kind of grief.
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Losing someone close in an attack is linked to a higher risk of long-lasting struggles, including post-traumatic stress and depression.

SAMHSA says grief has no timeline. For some it lasts months, for others a year or longer, depending on health, coping, culture and support.

The “Grief: understanding loss” guide in this app has ways to care for yourself after a loss.
👀 Witnesses and people nearbySeeing or hearing it can leave a lasting mark.
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NCTSN lists strong reactions to reminders, like seeing others who were there, media images, police or memorials, and being more sensitive to loud sounds.

Witnesses sometimes feel they “don’t count” because they weren’t hurt. Their distress is real and deserves support too.

🏙️ The wider community and countryFear, grief and a lost sense of safety can spread widely.
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In a 2019 national survey, 79% of U.S. adults said they feel stress about the possibility of a mass shooting, and a third said fear stops them from going to certain places or events.

The places adults most often named were public events, malls, schools or universities, and movie theaters.

🚑 Helpers need care tooFirst responders, health workers, teachers and clergy carry a lot.
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SAMHSA’s Disaster Distress Helpline is open to survivors, loved ones of victims, first responders, relief workers, clergy, and parents and caregivers. You can call for yourself or for someone else.

Helpers often put themselves last. Rest, peer support and talking with someone you trust are part of doing the job well, not a sign of weakness.

News, social media and how to limit it

Hours of coverage can raise stress, even for people far away.

In a large U.S. study after a bombing at a sporting event in 2013, people who watched six or more hours a day of coverage in the following week reported more acute stress than some people who were actually there.

🔁 Why repeated images hurtReplaying the worst moments keeps the alarm ringing.
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SAMHSA notes that repeated viewing of graphic images can worsen distress, and that heavy, repeated media exposure puts people at risk of secondary traumatization.

The National Center for PTSD adds that research with children shows even more clearly that watching too much trauma-related TV can be harmful.

📵 Signs to cut backWhen the news is taking more than it gives.
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The National Center for PTSD suggests cutting back if you

  • Can’t turn your news devices off
  • Feel anxious or stressed after watching
  • Find it hard to enjoy things
  • Have trouble sleeping
📰 Healthier ways to stay informedIt’s okay to look away.
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  • Avoid news right before bed
  • Avoid replaying graphic videos or images
  • Balance news with something calming or connecting
  • Check the news once or twice a day, not constantly
  • Keep news off around young children
  • Read rather than watch, or learn what happened by talking with others
  • Turn off autoplay and notifications for a while
Staying informed doesn’t mean watching everything.
📣 Rumors and social mediaEarly reports are often wrong.
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NCTSN notes that media and social media can trigger fears of another attack and also spread rumors.

Media can also help, by sharing where to find support and what events are planned for survivors.

Before sharing a post, pause. Is it confirmed? Is it kind to the families? Would they want it seen?

Talking with children and teens

Keep it simple, honest and calm, and focus on safety.

NCTSN advises starting the conversation, because silence can make the event feel even more frightening. With social media, most children and teens will already have heard something.

🗣️ How to startAsk what they know, then gently correct and reassure.
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NCTSN’s approach

  1. Ask what they have already heard
  2. Listen for misunderstandings and hidden fears
  3. Gently correct wrong information in simple words
  4. Answer questions directly and honestly
  5. Share how victims and families are being helped

A simple start: “Something scary happened. Lots of people are working to keep us safe.”

🎈 By ageLittle ones need short answers; teens may want to debate.
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  • Early elementary: brief, simple information balanced with reassurance
  • Upper elementary and middle school: more questions about whether they are truly safe
  • High school: strong and varied opinions about causes; listen and talk it through

Children often ask “Could it happen here?” They are usually asking “Am I safe?” It can be a good time to go over your family’s safety plans.

🌡️ Common reactions in kidsClinginess, irritability, sleep and appetite changes.
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NCTSN says children may have trouble paying attention, become irritable or defiant, not want to be apart from caregivers, and sleep or eat differently. These usually lessen within a few weeks.

Children sometimes blame themselves for what happened, which can bring shame and guilt. Reassure them clearly that it was not their fault.

🏡 What helps at homeRoutines, rules, rest and less screen news.
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  • Keep daily routines and family rules steady
  • Limit what they see and hear on screens; keep very young children away from coverage
  • Talk at mealtimes, not right before bed
  • Let them take a break from talking about it or from memorial events
  • Be a calm role model: share some feelings, and ways you’re coping
  • Give extra patience, hugs and time
🧑‍🎓 Teens and risky copingStrong feelings can come out sideways.
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NCTSN suggests helping teens see that risky behavior, like drinking or reckless driving, is a dangerous way to express strong feelings, and talking about better outlets such as exercise, journaling or time with others.

Checking in more closely for a while is okay. Let them know it’s temporary, just until things settle.

If a child’s reactions continue, get in the way of daily life, or worry you, NCTSN suggests contacting your pediatrician, family doctor or a mental health professional with trauma expertise.

Schools, campuses and workplaces

Going back to the places where life happens.

After an attack, ordinary places like classrooms, offices and stores can suddenly feel unsafe. Going back is often one of the hardest and most important steps.

🏫 SchoolsRoutines and caring adults help students feel safe.
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The National Association of School Psychologists says school staff work with families and public safety providers to keep students safe, and that keeping to a regular schedule is reassuring.

One study after an attack in Norway found students’ grades and school functioning suffered, with more days absent.

Tell teachers or the school counselor how your child is doing. They can watch for changes and offer support.
🎓 College and universityYoung adults may be far from family when it happens.
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Students may be coping away from home, with exams and deadlines still looming. Ask about counseling services, extensions and student support offices.

Patience matters: NCTSN notes young people may be more distracted and need extra help with schoolwork for a while.

💼 WorkplacesStress can show up as short tempers and lower focus.
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SAMHSA notes that the stress of a traumatic event can lead to poor work performance and short tempers at work. Workplace routines may change too.

At work, your human resources department or an Employee Assistance Program may be able to help.

Managers: flexibility, check-ins and time for people to talk or attend memorials can make a real difference.
⏸️ Big decisions can waitGive yourself time before major changes.
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SAMHSA and NCTSN both suggest putting off major life decisions, like career changes, when you can. Big changes are harder to manage after a traumatic event.

Vigils, memorials and collective grief

Grieving together helps communities feel less alone.

After mass violence, coming together can be powerful. Research on recovery after mass trauma highlights safety, calm, belief in coping, connection and hope as key ingredients, and shared rituals can offer several at once.

🕯️ Vigils and gatheringsShowing up together says “you are not alone”.
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SAMHSA says communities often need to come together to honor those who died and find meaning in a way that helps everyone recover, for example through community events or memorials.

Leaders who share accurate, timely information and encourage peer support help communities cope with stress and grief.

🌷 MemorialsPlaces to remember, and to keep names alive.
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Flowers, notes, art and lasting memorials can help people express what words can’t. They can also be reminders that bring feelings back, which is okay.

It’s okay to step back from memorial events if they feel like too much. You can grieve in your own way.
🌱 Turning grief into careSome people find meaning in helping others.
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SAMHSA notes communities may volunteer for youth programs, take part in cultural healing practices, or connect with local violence prevention offices.

Some people notice positive changes in time, like feeling closer to loved ones, more grateful, or more connected spiritually. There is no pressure to find a silver lining.

🙏 Grieving in your own wayTears, quiet, faith, anger: all have a place.
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SAMHSA’s ideas for coping with grief

  • Allow yourself to cry, and to feel joy at times
  • Do things you used to enjoy, even if you don’t feel like it
  • Get some exercise and eat regular meals
  • Talk with people who understand and respect how you feel
You can help others by checking on neighbors, bringing food to a grieving family, or simply showing up.

Anniversaries and reminders

Dates, sounds and news of new events can bring feelings back.

SAMHSA says memorial dates can renew fear, anxiety and sadness, and some people start feeling it days, weeks or months before. Sounds like sirens can stir up distress at any time.

🗓️ Memorial datesThe anniversary can feel heavy for years.
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The Disaster Distress Helpline supports people around anniversaries and reminders, not just right after an event.

Plan the day ahead: who you’ll be with, what you’ll do, and how you’ll rest afterwards.
🎆 Loud noises and holidaysFireworks, sirens and crowds can be hard.
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NCTSN notes that many young people become more sensitive to loud sounds after a shooting. Fireworks, sirens or a slammed door can set off the alarm.

It can help to plan ahead for holidays and big events: know the exits, bring a support person, or choose a quieter way to celebrate.

📰 When another event happensNews of a new tragedy can reopen old wounds.
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The National Center for PTSD notes that media reports of current events can act as reminders of past events.

On those days, be extra gentle with yourself and limit coverage.
💗 Ways to cope with hard daysSAMHSA’s ideas for memorial dates and reminders.
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  • Accept kindness and help from others
  • Be aware that special days may be difficult
  • Be gentle with yourself
  • Do activities you enjoy, alone or with others
  • Draw on your faith or spirituality if that helps you
  • Help others, if that feels right
  • Talk about your losses with someone you trust

How to support someone

Listen, be present, and help with practical things.

You don’t need the perfect words. Being there, listening and helping with everyday needs often matter most.

👂 Listening wellLet them talk, without rushing to fix.
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The National Center for PTSD suggests

  • Find a quiet time and place to talk
  • Just be with them, and let them know they’re not alone
  • Let them talk without interrupting, as much as you can
  • Offer to talk again any time
  • Remind them of their strengths and values
  • Show interest, attention and care, without judgment
💬 Things you might saySimple, caring words.
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  • “It sounds really hard.”
  • “No wonder you feel that way.”
  • “I’m really sorry this is such a tough time.”
  • “What has helped you before when things got hard?”
  • “We can talk more tomorrow if you’d like.”

Try not to ask for graphic details, compare their experience with others, or tell them how they should feel.

🍲 Practical helpMeals, rides, childcare, forms.
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  • Bring a meal or groceries
  • Help with calls, forms or appointments
  • Offer childcare or school pickups
  • Offer a ride, or go with them somewhere hard
  • Remember the hard dates, and check in
Offer something specific, like “Can I bring dinner Thursday?”, rather than “Let me know if you need anything.”
🧘 Caring for yourself while you helpYou can’t pour from an empty cup.
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Supporting someone through trauma can stir up your own feelings. Rest, talk with someone you trust, and take breaks from the news.

You can call the Disaster Distress Helpline for yourself or on behalf of someone else.

When and where to get help

Signs it’s time for more support, and free places to turn.

SAMHSA advises asking for help if you or a family member have trouble coping, or if signs of stress last more than 2 to 4 weeks.

Signs to take seriously

  • Confusion, or trouble focusing or communicating
  • Drinking or using drugs more
  • Fear of crowds, strangers or being alone
  • Frequent mood swings or constant crying
  • Not wanting to leave home
  • Overwhelming guilt, self-doubt or hopelessness
📞 Disaster Distress HelplineCall or text 1-800-985-5990. Free, 24/7.
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SAMHSA’s Disaster Distress Helpline supports anyone in the U.S. and its territories with distress after incidents of mass violence, as well as other disasters, anniversaries and reminders.

  • Call or text 1-800-985-5990
  • For Spanish, press 2
  • Interpreters in over 100 languages
  • Deaf and hard of hearing callers can use their preferred relay service
🆘 In crisis: 988Call or text 988 for the Suicide & Crisis Lifeline.
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If you’re thinking about suicide or are in emotional crisis, call or text 988, or chat at 988lifeline.org. It’s free, confidential and open 24/7.

If you or someone else is in immediate danger, call 911.
⚖️ Help for crime victimsVictim services and compensation programs can help.
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The U.S. Office for Victims of Crime says victims may be eligible for crime victim compensation, which can help with costs like medical care, mental health counseling and lost wages. All states receive federal funds for victim assistance and compensation programs.

OVC also runs a program that supports victims and communities after terrorism and mass violence, and a directory to search for local victim services.

🏥 Counseling and careYour clinical provider, a counselor or a faith leader.
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SAMHSA suggests talking with a primary care professional you trust about your grief and whether counseling might help. A faith leader may also be able to refer you, and a child’s school may know local support options.

Support groups can offer a safe space to share experiences and feel less alone.

🌐 Outside the U.S.Find a free helpline in your country.
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Find A Helpline (findahelpline.com) is a free directory of crisis lines around the world, which the International Association for Suicide Prevention points people to.

📝 Worksheets for this guide

Fill these in privately in the app. Your answers stay on your phone.

How I’m doing after the eventA gentle check-in. Write only as much as you want, and come back to it as the weeks go by.
My news and social media planStay informed without being flooded. Small limits can make a big difference.
Talking with my childPlan a calm, honest conversation, and notice how your child is doing over the coming weeks.
Remembering and hard datesA space to plan for anniversaries and reminders, and to honor what was lost in your own way.
🔒 Fill in privately in the Mentally United Wellness App. Free, no ads, no accounts.

Sources

  1. U.S. Department of Veterans Affairs, National Center for PTSD. Disaster Events
  2. U.S. Department of Veterans Affairs, National Center for PTSD (2025). Disaster Event Resources: For Everyone
  3. U.S. Department of Veterans Affairs, National Center for PTSD. Common Reactions After Trauma
  4. U.S. Department of Veterans Affairs, National Center for PTSD. Media Coverage of Disaster Events
  5. U.S. Department of Veterans Affairs, National Center for PTSD. Tips for Providing Support to People Affected by Disaster Events
  6. U.S. Department of Veterans Affairs, National Center for PTSD. Self-Help and Coping
  7. Substance Abuse and Mental Health Services Administration (SAMHSA). Disaster Distress Helpline
  8. Substance Abuse and Mental Health Services Administration (SAMHSA). Disaster Memorial Dates and Activating Events
  9. Substance Abuse and Mental Health Services Administration (SAMHSA). How to Cope With Traumatic Events and Disasters
  10. Substance Abuse and Mental Health Services Administration (SAMHSA) (2023). Tips for Survivors of a Disaster or Traumatic Event: What to Expect in Your Personal, Family, Work, and Financial Life (PEP23-01-01-010)
  11. Substance Abuse and Mental Health Services Administration (SAMHSA) (2024). Tips for Survivors: Coping With Grief After Community Violence (PEP24-01-028)
  12. SAMHSA Disaster Technical Assistance Center (2017). Supplemental Research Bulletin: Mass Violence and Behavioral Health
  13. National Child Traumatic Stress Network (NCTSN). Talking to Children about the Shooting
  14. National Child Traumatic Stress Network (NCTSN). Parent Guidelines for Helping Youth After the Recent Shooting
  15. National Association of School Psychologists (NASP). Talking to Children About Violence: Tips for Parents and Teachers
  16. Peer-reviewed research (PubMed, NIH) (2007). Five essential elements of immediate and mid-term mass trauma intervention: empirical evidence (Hobfoll et al., Psychiatry)
  17. Holman, Garfin & Silver (peer-reviewed) (2014). Media’s role in broadcasting acute stress following the Boston Marathon bombings (PNAS)
  18. Trauma, Violence, & Abuse (peer-reviewed), via PubMed (NIH) (2017). The Mental Health Consequences of Mass Shootings (Lowe & Galea, Trauma, Violence, & Abuse 18(1): 62–82)
  19. American Psychological Association (APA) (2019). One-third of US adults say fear of mass shootings prevents them from going to certain places or events
  20. U.S. Department of Justice, Office for Victims of Crime (OVC). Victim Assistance and Compensation in Your State
  21. U.S. Department of Justice, Office for Victims of Crime (OVC). Help for Victims
  22. U.S. Department of Justice, Office for Victims of Crime (OVC). Antiterrorism and Emergency Assistance Program (AEAP): Overview
  23. 988 Suicide & Crisis Lifeline. 988 Suicide & Crisis Lifeline
  24. Find A Helpline (ThroughLine). Find A Helpline
  25. International Association for Suicide Prevention (IASP). Crisis Centres & Helplines

This guide is for education and self-care. It is not a diagnosis or a substitute for professional care. Please talk to a counselor or clinical provider about your health. Reviewed October 2026.

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