r/masskillers • • Dec 14 '25

ANNOUNCEMENT Absolutely NO footage or images showing victims of ANY mass casualty event will be allowed here.

156 Upvotes

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 • • Feb 17 '23

What to do if you suspect a person is planning a mass shooting

1.1k Upvotes

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 • • 4h ago

Breaking MEGATHREAD Police respond to report of active shooter at Silver Rail Elementary School in Bend, Oregon

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304 Upvotes

r/masskillers • • 4h ago

Posts From Adam Lanza's Tumblr Accounts (pt. 1)

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112 Upvotes

r/masskillers • • 6h ago

ATTEMPTED Mass Murder Additional mugshot of 19-year-old Alexandros Paporakis, who attempted to open fire outside a Hindu temple in Aurora, Illinois a few days ago when his rifle jammed, causing him to drive back home where he was later arrested

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132 Upvotes

r/masskillers • • 6h ago

ATTEMPTED Mass Murder The father of the 2026 Ostrołęka, Poland, High School stabber commited suicide today.

77 Upvotes
Jakub Zalewski. The perpetrator.

Jakub Zalewski, 19, commited a mass stabbing at his High School in Ostrołęka on October 7, 2026 in Poland.

His father Krzysztof Zalewski, 45, commited suicide today. Krzysztof was abusing his family for almost 20 years and was released from prison a few months ago.


r/masskillers • • 9h ago

Trump says government won’t livestream planned Dec 3 execution of 2009 Fort Hood shooter Nidal Hasan | Victim's relatives will be able to watch in person.

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130 Upvotes

President Donald Trump said Thursday that the government will not livestream the firing-squad execution of Fort Hood shooter Nidal Hasan — canceling a plan announced last week by Defense Secretary Pete Hegseth.

While publicly streaming Hasan’s execution “might have been a strong deterrent for the World to witness how America deals with Terrorists and SCUM like Hasan,” Trump said in a Truth Social post, “many very good and well meaning people would rather not watch him die, through streaming, or through any other visual device.”

“He will die, as scheduled, by firing squad, but this event will not be streamed,” the president said, adding that family members of Hasan’s victims will be able to view the Dec. 3 execution in person.

The Army sentenced Hasan, a former major, to death in 2013 for killing 13 people and injuring 32 others at Texas’ Fort Hood Army base in 2009.

Trump’s announcement follows widespread pushback from Republicans and Democrats alike after Hegseth said last week that Hasan is “going to get a firing squad of soldiers, and we’ll make sure that people are able to watch it.” Some critics cited concerns about reinforcing Hasan’s stated desire for martyrdom; others argued that making the execution public was contrary to American values.

Signs that the plan could be reversed emerged quickly. A day after the defense secretary’s announcement, Vice President JD Vance said of the livestream, “I don’t know that’s going to happen.”

Speaking to reporters at the White House over the weekend, Trump said he would make the final call.

“There are two thoughts: don’t show it and show it. ’Cause you know, by showing it, maybe other people won’t be doing what he did. So I’ll make a decision ultimately. I know what the military would like to do, but I’ll make a decision,” the president said.

In an interview with CBS News earlier this week, House Speaker Mike Johnson, R-La., said he was concerned that a video of Hasan’s execution could be used by future terrorists as a recruiting tool.

“We’ve got to think through the policy implications of all that,” he said, adding, “I wouldn’t be watching it if it was aired.”

The speaker also said that he needed to convey to the White House the views of his Republican colleagues in Congress, saying, “Not everybody is in favor of the idea.”

The U.S. military last conducted an execution in 1961, when it hanged Army Pvt. John Bennett after he was convicted of raping and attempting to kill an 11-year-old girl in Austria. The military last executed someone by firing squad in 1945, when it put Pvt. Eddie Slovik to death after he was court-martialed for desertion during World War II.


r/masskillers • • 3h ago

ATTEMPTED Mass Murder On October 14, 2026, in Adana, Turkey, a sixth-grade girl stabbed and injured another student.

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47 Upvotes

The incident took place at Aliya İzzet Begoviç Middle School in the Gürselpaşa neighborhood of Seyhan, a district of Adana. According to reports, a sixth-grade girl whose name has not been disclosed approached a classmate during recess and allegedly injured her arm with a bread knife she had brought to school in her bag from home. After other students informed their teachers, police and medical teams were dispatched to the school. The injured student, who sustained a minor arm injury, was taken to the hospital as a precaution. The student responsible for the attack was taken to the Juvenile Police Department by police officers. Classes at the school were suspended for one day following the incident.

https://www.ntv.com.tr/amp/gundem/adanada-ortaokulda-bicakli-saldiri-6-sinif-ogrencisi-arkadasini-yaraladi-1746323

The attacker's TikTok account, appears to show that she announced the attack a day in advance

"Tomorrow or sometime soon, it'll be my turn, AIBO."

AIBO is an abbreviation for the school she attended, Aliya İzzet Begoviç Middle School.


r/masskillers • • 1d ago

Newly released surveillance footage of the Crocus City Hall attack NSFW

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503 Upvotes

r/masskillers • • 1d ago

ATTEMPTED Mass Murder Mugshot of 19-year-old Alexandros Paporakis, who has been arrested for planning a mass shooting at a Hindu Place of worship in the Aurora, Illinois area. A rifle, body armor, and hundreds of rounds of ammunition were recovered from his home.

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260 Upvotes

r/masskillers • • 1d ago

Photos of Salvador Ramos during his childhood

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138 Upvotes

r/masskillers • • 23h ago

Tumbler Ridge shooting plot suspect to remain in federal custody ahead of trial

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39 Upvotes

BELLINGHAM, Wash. — A Bellingham woman who is charged with helping to plot a mass shooting at a Canadian school earlier this year will remain in federal custody, a U.S. District Court judge ruled Tuesday.

James Cody Bryant, 30, who uses she/her pronouns and goes by the name Melody, appeared in court and shook her head as federal prosecutors outlined their accusations that she conspired with 18-year-old Jesse Van Rootselaar to carry out the February shooting in Tumbler Ridge, British Columbia.

“It does not get much more serious or dangerous for the community,” Assistant U.S. Attorney Todd Greenberg wrote in a memorandum asking for Bryant to remain in custody. “With a full understanding of Van Rootselaar’s intent, Bryant aided in the attack plot, becoming a conspirator in the murders.”

Greenberg told Judge Mary Alice Thieler there were no conditions that could be imposed to ensure the safety of the community if Bryant were granted release pending trial. Bryant is charged with conspiracy to murder people in a foreign country, a federal charge that carries the potential for life in prison without parole.

“In the end, Bryant followed through on the promise to not ‘snitch’ on Van Rootselaar,” Greenberg said. “Anyone whose character allows them to help plan a mass shooting and then sits back and literally tries to watch as schoolchildren are murdered, instead of ‘snitching’ on the killer, is a danger to the community and should be detained pending trial.”

According to the charges, Bryant and Van Rootselaar had discussed prior mass shootings and their notoriety, with Van Rootselaar saying in messages that she wanted to carry out the deadliest mass shooting in Canadian history.

But Bryant’s defense attorney, Gregory Murphy, distanced her from Van Rootselaar’s actions.

“(Bryant) cooperated fully and expressed horror at Van Rootselaar’s crimes,” Murphy wrote in a response memorandum filed ahead of Tuesday’s hearing. “Ms. Bryant has no criminal history and there is no evidence that she has ever personally committed an act of violence.”

In arguing for Bryant’s release, Murphy said the FBI and federal prosecutors have had access to the online chat logs between Bryant and Van Rootselaar for eight months.

“The government’s memorandum identifies no evidence she has done or said anything since her chats were discovered to encourage any other act of violence, or that Ms. Bryant has ever communicated with any other person as deeply disturbed as Van Rootselaar,” Murphy wrote.

Murphy added that Bryant sobbed when she was questioned by the FBI.

“She’s not a political radical,” Murphy told Judge Thieler. “She is somebody who became friends with someone who was deeply mentally disturbed.”

But Thieler was not persuaded, noting the “concerted, prolonged” planning of the attack.

“I don’t think this is a case where those conditions proposed by pretrial services could reasonably address the danger to the community should those conditions not succeed,” Thieler said.

Bryant is scheduled for a preliminary examination hearing in federal court later this month.

Canadian authorities have not announced whether she is expected to face charges in Canada connected to the shooting.


r/masskillers • • 1d ago

Some Photos of David Kozak during his child/teen years

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100 Upvotes

I found these from someone, no idea what the origin or context is for the last one though.


r/masskillers • • 1d ago

More Information About the June 10th 2025 Neelin Highschool Stabbing in Manitoba, Canada.

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31 Upvotes

On June 10th 2025 an unnamed 16 year old student attempted an attack on his school with a sword, he later admitted to being a Nazi and was inspired by the 2015 Trollhättan school stabbing. He spoke of immigrants as "Invaders" and intended to harm/kill them, also wrote about mass killers and prior school attacks such as Columbine. He also had 14,538 photos of Nazi Imagery and Weapons on his phone.


r/masskillers • • 1d ago

David Kozak at his graduation ceremony in 2018

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45 Upvotes

r/masskillers • • 2d ago

ATTEMPTED Mass Murder Photos of KZN Special Needs School Attacker

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544 Upvotes

Earlier today in Umhlali village in South Africa a mass attack happened in which the perpetrator, 16 year old Aaron Fourie stabbed a 6yr girl multiple times with a kitchen knife (after his homemade “rifle” failed to fire) before being security and members of the public managed to subdue the attacker.
The injured victim is alive and in the hospital under intense care.

The first photo shows him in his outfit for the attack (wearing a wrath shirt, obviously copying Columbine).

the second photo appears to be him copying Timofey Kulyamov.

Third photo is him being edgy.

Fourth photo is a Samantha copycat.

Fifth photo is a Colt Grey copycat.

Sixth photo is him after being beat after his first attempted mass attack last month (he injured 4 people with a hammer and pepper spray).

The 7th photo is him after being arrested from today’s attack.

Update:
He committed 3 total attempted mass attacks in his
life.
The first was

  1. mall bludgeoning and spraying

attack, he went into a mall with pepper spray and a hammer. He recorded parts of the attack and sent it to friends mid-attack. He injured 4 people, and was specifically targeting racial minorities. He was then beat by the public and arrested, although after being released he plotted and committed this attack.
The second was aa failed

  1. bombing

    in which he wanted to blow up the city of Ballito.
    The third was his most recent, an

  2. attempted mass stabbing at the KZN Special Needs School, where he injured 1 with a knife.


r/masskillers • • 1d ago

All Contributions Adam Lanza Made to Wikipedia

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151 Upvotes

r/masskillers • • 2d ago

ATTEMPTED Mass Murder The Weapon(s) from the KNZ School Attack

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122 Upvotes

Earlier today in Umhlali village in South Africa a mass attack happened in which the perpetrator, 16 year old Aaron Fourie stabbed a 6yr girl multiple times with a kitchen knife that attached to his rifle (after the homemade “rifle" failed to fire) before security and members of the public managed to subdue the attacker.
The injured victim is alive and in the hospital under intense care.
He committed 3 total attempted mass attacks in his
life.

  1. Was a mall bludgeoning and spraying
    attack, he went into a mall with pepper spray and a hammer. He recorded parts of the attack and sent it to friends mid-attack. He injured 4 people, and was specifically targeting racial minorities. He was then beat by the public and arrested, although after being released he plotted and committed this attack.

  2. Was a failed bombing, in which he wanted to blow up the city of Ballito.

  3. Was the attempted mass stabbing at the KZN Special Needs School, where he injured 1 with a knife.


r/masskillers • • 1d ago

Jury selection begins in hate crimes trial for Buffalo supermarket gunman

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33 Upvotes

Jury selection is set to begin on Tuesday in the trial that could see the white supremacist who killed 10 people in a 2022 Buffalo supermarket get the death penalty.

The attack is believed to be the deadliest shooting targeting Black people in modern history.

Payton Gendron is facing more than two dozen federal hate crime charges – and over a dozen firearms charges. He is already spending life in prison on state murder charges.

Families of the victims and survivors differ on whether Gendron should be sentenced to death. His defense team is not going to dispute his guilt and instead focus on arguing that he should be spared execution.

“Nothing will change the fact that Payton Gendron will die in prison,” the federal public defender office said in a statement. “At trial, we will offer mitigating evidence about Payton that the jury needs to consider in making its decision. Nothing we say or do is intended to be disrespectful or insensitive to the victims, the survivors, or their loved ones.”

Some victims’ family members, however, are not totally against the death penalty.

“I’ve never been like out here like, ‘Yay! Go for the death penalty.’ That’s never been me,” said Buffalo common council member Zeneta Everhart, who ran for office over a year after her son, Zaire, survived the shooting. “Ten people died that day in an egregious way and in an awful, terrible, traumatic way.”

Her son, now 25, and the two other survivors have had their lives irrevocably altered, she added.

Gendron drove more than 200 miles (320km) from his home in Conklin, a predominantly white and rural town, to Buffalo on 14 May 2022. Then 18, he fired about 60 shots from a semiautomatic rifle at employees and shoppers at the Tops Friendly Markets grocery store on Jefferson Avenue.

Video revealed Gendron apologized to a white store worker after shooting him in the leg. He surrendered to police as he exited the supermarket.

Investigators found past social media posts and other writings by Gendron dedicated to planning an attack to frighten people who were non-white and non-Christian into leaving the US. He also promoted a baseless “great replacement theory” that people of color will replace white people through higher birth rates and immigration.

The victims who were killed were all Black and between ages 32 and 86. Besides Chaney, they included Geraldine Talley, Katherine Massey, Pearl Young, Andre Mackneil, church deacon Heyward Patterson, Ruth Whitfield, Roberta Drury, Margus Morrison and Aaron Salter, a retired Buffalo police officer who was working as a security guard.

Beside being one of the deadliest acts of anti-Black violence in modern US history, the 2022 Tops mass murder reflects a grim reality represented in national bias crime statistics.

Black people have comprised the “number one numerical target” annually since the FBI began collecting data in 1991, according to hate crime analyst Brian Levin, of the California Association of Human Relations Organizations. The record high was 3,670 anti-Black bias incidents in 1996.

According to FBI data released in August, law enforcement agencies reported more than 2,800 anti-Black hate crime incidents in 2025, nearly three times the number targeting Latinos. The FBI also reported a 7% decline in hate crime incidents from 2024 to 2025.

The Buffalo shooting and the 2015 Charleston, South Carolina, church shooting, in which a white gunman killed nine Black churchgoers, show how online radicalization makes this a terrorism matter as well.

“Unfortunately, [Gendron] fits the pattern of young, mostly white males undertaking targeted massacres which are then justified by manifestos, which are also part of a continuing chain that references prior attacks often but seeks to encourage future ones,” Levin said.


r/masskillers • • 2d ago

Photos of the Charles University Shooter at Prom in 2019

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181 Upvotes

It was supposed to be some sort of video but I couldn't find it on YouTube. I thought there werent any images of this guy but I managed to find these off someone. He seemed to be 20 years old in these pictures.


r/masskillers • • 2d ago

Today marks the beginning of jury selection in Payton Gendrons federal death penalty trial

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75 Upvotes

This is in person jury selection, which is expected to last a few weeks, potentially up until December.

On May 14, 2022, a mass shooting occurred[15][16]in Buffalo, New York, United States, at a Tops Friendly Markets supermarket in the East Sideneighborhood. Ten people, all of whom were black, were murdered, and three people were injured.[17][18][19] The perpetrator, 18-year-old Payton Gendron,[5] livestreamed part of the attack on Twitch) until the livestream was shut down by the service in under two minutes.[20]


r/masskillers • • 2d ago

CCTV footage of David Kozák buying one of the guns he'd use in the Charles University shooting

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109 Upvotes

r/masskillers • • 2d ago

ON THIS DAY… Today marks 4 years since 15-year-old Austin Thompson killed 5 people and injured 2 others in Raleigh, North Carolina, before attempting suicide by shooting himself in the head

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146 Upvotes

r/masskillers • • 2d ago

ATTEMPTED Mass Murder Six-year-old stabbed, teen suspect previously linked to alleged KZN bomb plot

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53 Upvotes

r/masskillers • • 2d ago

ON THIS DAY… 15 years ago, a mass shooting would occur at a hair salon in Seal Beach, California, killing eight. The perpetrator remains locked behind bars.

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95 Upvotes

The perpetrator, Scott Evans Dekraii, targeted the place following a custody dispute with his ex-wife, who was one of the victims killed in the shooting.