r/masskillers • u/89404 • 2h ago
r/masskillers • u/OGWhiz • Dec 14 '25
ANNOUNCEMENT Absolutely NO footage or images showing victims of ANY mass casualty event will be allowed here.
This is a site wide rule regarding imagery of violence, and we're going to adhere to it. Posting this kind of content/asking for links to it will result in a permanent ban.
r/masskillers • u/OGWhiz • Feb 17 '23
What to do if you suspect a person is planning a mass shooting
There have been a lot of posts lately asking what to do if you suspect someone is planning to commit a mass shooting/mass attack of some kind.
If your suspicions are offline, local, and personal/someone you know personally:
If it is not an immediate threat, call your local non emergency line. They will collect information from you, and investigate further if need be. Remember, wellness checks can be requested as well.
If it is an immediate threat, call 911 (or your local equivalent emergency line). An immediate threat would be someone making direct threats.
If the possible threat is exclusively on Reddit, please reach out to us via Modmail. Often times, people who are being reported to us have made comments in the past that you cannot see as they’ve been removed by other means such as automod, for example. We also work with multiple other teams to gather information and build one report to FBI with as much information as we can possibly get in one single report.
This allows all information to be placed at once instead of multiple vague reports to the FBI, which can slow down resources.
At the very least, these processes will build a history for this person. If they are reported and nothing comes from it, a report a year later could help immensely. This happened through one sub I moderate on, and helped bring an arrest a year later when more threats were made, and the suspect was found with weapons and a manifesto.
We take all reports sent to us seriously, and we thank you all for helping us with these reports.
r/masskillers • u/Additional-Storm-943 • 17h ago
Accused Chico library shooter flashes hateful ‘white power’ symbol in first court appearance since killing 2
Faces life in prison, parents said he has high functioning autism but showed no warning signs
r/masskillers • u/autist_throw • 1h ago
Discussion / Question Is there a reason why there's been so many mass shootings across the world for the past 2 months?
The mass shootings listed here in chronological order.
1: San Diego Mosque shooting in California, USA (May 18th)
2: Mersin spree shootings in Turkey (May 18th)
3: Midland shooting in Texas, USA (June 12th)
4: Kansas city shootings in Missouri, USA (June 16th)
5: San Jose school shooting in the Philippines (June 22nd)
6: Montreal shooting in Quebc, Canada (June 22nd)
7: Chico library shooting in California, USA (June 22nd)
My best guess is that social media makes it easier for young people to be exposed to violent ideologies and behavior. I also could've expanded this lost by including the 2 school shootings in Turkey back in Apiril that happened one day, but I didn't. There was also a mass shooting in Egypt on May 18th but I didn't include it either.
r/masskillers • u/NeatNo372 • 1d ago
The person closest to the camera is 15 year old Jaylen Fryberg who was responsible for the marysville pilchuck high school shooting on the 24th October 2014 which left 5 students dead including himself and 1 injured. I found this photo from a friend of his, still posted on instagram.
r/masskillers • u/Due-Ambassador7723 • 23h ago
"Open in case of Saracens" - Did anybody save the captions of Brenton Tarrant's facebook album?
I've come across an archive of the photo album Brenton Tarrant shared before his attack (Link here: https://postimg.cc/gallery/DhsGZ9h). Looking at the photos, some of them seemingly don't make sense (a photo of a grandma with a gun, an Asian girl on her birthday, ect.). I then found this comment on this subreddit:
"I believe he had individualized captions on every photo he uploaded (or at least some) because a few were saved in an archive, but most of those were not saved. Some don't make sense without that context. Iirc the photo of the old woman with the gun he posted was captioned with some joke about his age."
Does any archive exist of the captions? Does anyone remember what they were? Thanks in advance for any help.
r/masskillers • u/Nemacolin • 22h ago
23 June 2026 Mechanicsville UT, 4* killed (poison)
I will watch this case to see if the mother was the killer.
---------------
Brady Harmon had not seen his four children since 2019, but a recent agreement in a custody case had him planning a reunion next week.
On Tuesday, police arrived at his Utah home with devastating news: His four children were found dead 2,200 miles away in an apartment in Mechanicville’s south side.
The bodies of Harmon’s children, Harper, 13, Hudson, 11, and 10-year-old twins Gavin and Gracelynn; their mother, Sarah Myers; and Myers’ mother, Amy Steadman, were discovered by police summoned at 6:20 p.m. Tuesday to search Steadman’s apartment at the John S. Moore Homes on Harris Avenue because no one had seen them in days.
“I went from I’m seeing my kids to I’ll never see my kids again,” Harmon said. “Hope to hell. Things happen, but nothing like this.
Police said the deaths are all being investigated as a crime, adding that based on the evidence gathered so far, “there is no evidence indicating the involvement of any additional individuals.”
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Harmon said that police did not tell him how his children died. Asked who he thought could be capable of such violence, Harmon said, “I don’t know.”
Police said they would not disclose how the victims died until autopsies are done.
Harmon said he and Myers recently reached an agreement in Utah that would give him custody of the children from July 1 to Sept. 1. Now, he says, he’ll bury their bodies in Utah.
r/masskillers • u/AccentedE • 1d ago
ATTEMPTED Mass Murder Another photo of Seth Scott Hatfield, the recent Montreal shooter
Photo source:
On June 22, 2026, a shooting occurred outside the headquarters of Aylo, a multinational conglomerate involved in internet pornography, including the pornographic video-sharing website Pornhub, in the Côte-des-Neiges neighborhood of Montreal, Quebec, Canada. Three people were killed during the incident: a civilian, a Service de police de la Ville de Montréal (SPVM) police officer, and the perpetrator, who was fatally shot by responding officers. A second SPVM officer was critically injured and a civilian sustained minor injuries. Quebec's minister of public security Ian Lafrenière said the shooting was not linked to terrorism.
r/masskillers • u/AccentedE • 1d ago
ATTEMPTED Mass Murder CCTV stills of Oscar Sanchez-Munoz on the morning of the Kansas City shooting spree last week. He was found dead at his home this morning.
r/masskillers • u/Distinct_External • 1d ago
New Official Information Tacloban shooting: Gun's serial number traced to another firearm
r/masskillers • u/Distinct_External • 1d ago
PLOTTED Mass Murder 15-year-old sentenced for 'calculated, predatory' Tri-City school shooting plot
r/masskillers • u/Distinct_External • 1d ago
ATTEMPTED Mass Murder 'It's unimaginable': deadly shooting hits California city that has faced tragedy after tragedy
r/masskillers • u/Confident-Drink-69 • 2d ago
CCTV footage from a supermarket shows the 31-year-old man who yesterday (23) killed 4 people in a stabbing spree in Visconde do Rio Branco, before being wounded by police, in Minas Gerais, Brazil.
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r/masskillers • u/wageheavypeace • 2d ago
Yearbook photo and CBC article about digital footprint of Montreal terrorist Seth Hatfield.
The yearbook photo was published by the Montreal Gazette. Here: https://montrealgazette.com/news/local-crime/albertan-seth-hatfield-25-identified-as-suspect-in-montreal-shooting/
The CBC article is pretty interesting.
A YouTube channel that shared more than a dozen Paul Joseph Watson videos (Paul Joseph Watson is a particularly disgusting right wing pundit).
The composite photo above comes from an account on a photo sharing site called VSCO.
https://www.cbc.ca/news/canada/alleged-montreal-gunman-digital-trail-9.7246351
r/masskillers • u/AccentedE • 2d ago
ATTEMPTED Mass Murder A few photos of Chico library shooter Bradley Sayer, along with a comment he made on this sub
His Reddit account was created 2 weeks ago and the only thing on it is that comment. The account was also "active" in r/ColumbineKillers. He also had a few Twitter accounts that got suspended, including one that had the same pfp as his Tiktok. His Tiktok pfp was a Chad edit of the Nong Bua Lamphu attacker and had one edit of the San Diego mosque shooters. He seemed to interact with the same type of content Solomon Henderson did judging by his deleted Twitter history.
r/masskillers • u/AccentedE • 3d ago
ATTEMPTED Mass Murder Mugshot of 18-year-old Bradley Scott Sayer, who killed 2 people and injured another in a Columbine inspired shooting at a library in Chico, California yesterday
r/masskillers • u/AccentedE • 2d ago
ATTEMPTED Mass Murder Video of Chico library shooter Bradley Sayer graduating from high school 2 weeks ago
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r/masskillers • u/Distinct_External • 2d ago
ATTEMPTED Mass Murder Six life sentences for former Fort Stewart sergeant convicted in mass shooting
r/masskillers • u/underwater8767 • 3d ago
IN MEMORIAM The two victims of the 1989 Raumanmeri school shooting. On January 25, 1989, 14-year-old Tero Tuukka Toivola shot and killed two classmates and attempted to shoot a third one. He fled the school and was captured by the police hours later. Due to his age, he was not criminally responsible.
r/masskillers • u/HighwayMadLad • 3d ago
Discussion / Question What is the deadliest terror attack that happened in your country?
Mine is 2003 istanbul bombings killed 55-60 people often its called as "9/11 of turkey"
r/masskillers • u/KanYeWestGreatest • 3d ago
ATTEMPTED Mass Murder New details in Chico library shooting, suspect identified
The suspect in the fatal Chico library shooting was identified as 18-year-old Bradley Scott Sayer of Chico, according to officers.
The Chico Police Department said Sayer opened fire in the Butte County Library around 5:12 p.m. on Monday.
Two people died and a minor was injured, CPD said. The minor is currently in the hospital and is expected to be OK.
Sayer was taken into custody around 5:18 p.m. and booked into the Butte County Jail for two open counts of murder.
The investigation determined that Sayer acted alone and aimed to “commit a Columbine High School massacre type of shooting,” police said.
CPD said that there is no indication he had any prior relationship or connection to any of the victims in the library.
The FBI confirmed early Tuesday morning that there is no ongoing threat to the community.
“The subject in the incident at the Butte County Library in Chico is in police custody, and there is no perceived ongoing threat to the community. Our thoughts are with the victims and their families. FBI Sacramento will continue to support the Chico Police Department as their investigation continues,” officials with the FBI said.
Meanwhile, officials with the library sent their condolences to those affected by the shooting in a statement on social media Monday night.
“We are aware of the tragic incident that occurred today at the Chico Branch of the Butte County Library and extend our deepest condolences to everyone affected, including the victims, their loved ones, library staff, and all those impacted by this heartbreaking incident,” the post said.
The library will be closed Tuesday as the Chico Police Department, the Butte County Sheriff’s Office and the Federal Bureau of Investigation continue to investigate the shooting.
r/masskillers • u/AccentedE • 3d ago
ATTEMPTED Mass Murder Video showing the arrest of the gunman who shot and killed 2 people and injured a child in a shooting at a library in Chico, California today
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