CARSON CITY, Nev. – Mass shootings often are preventable – and a majority of the weapons were obtained legally, according to a comprehensive federally funded study released this week from The Violence Project.
Researchers found that shooters tend to have four things in common: they've experienced childhood trauma; they're at a crisis point or nurse a specific grievance; they study prior massacres and they have access to a firearm.
James Densley, a cofounder of The Violence Project, a co-author of the report and a professor of criminal justice at Metropolitan State University in Minnesota, says people shouldn't despair – solutions are out there.
"A lot of times, we just write people off that bad things are going to happen,” he states. “And bad people are going to do bad things and there's nothing we can do about it.
“But actually our data is showing us that there's a lot of warning signs and there's a lot of actual opportunities for intervention if we have the right pieces in place."
The data show that 167 mass shootings have claimed 1,202 lives in the U.S. since 1966, with 20% of them in the last five years alone.
Nevada recently passed several policies recommended in the report – requiring background checks for gun purchases, banning bump stocks, and passing a red flag law that allows friends, family and law enforcement to petition a court to remove firearms from a person showing danger signs.
The mass shooting in Las Vegas on Oct. 1, 2017 remains the deadliest in U.S. history, with 58 lives lost.
Densley says while many shooters are motivated by racism, misogyny or religious hatred, the Vegas perpetrator may have been primarily seeking notoriety.
"The motives of that particular shooter are still a little bit unknown,” Densley states. “But in the last five years, we've seen an uptick in events which seem to have a fame-seeking motivation."
The report also found that most school shooters steal or borrow a weapon from a family member and that many are suicidal.
So, programs to encourage safe storage of firearms and efforts to help students who are struggling with suicidal thoughts are highly effective strategies for gun-violence prevention.
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By Bram Sable-Smith for KFF Health News.
Broadcast version by Chrystal Blair for Missouri News Service reporting for the KFF Health News-Public News Service Collaboration
Violent crime was already trending down from a covid-era spike when President Donald Trump presented a picture of unbridled crime in America on the campaign trail in 2024. Now his administration has eliminated about $500 million in grants to organizations that buttress public safety, including many working to prevent gun violence.
In Oakland, California, a hospital-based program to prevent retaliatory gun violence lost a $2 million grant just as the traditionally turbulent summer months approach. Another $2 million award was pulled from a Detroit program that offers social services and job skills to young people in violent neighborhoods. And in St. Louis, a clinic treating the physical and emotional injuries of gunshot victims also lost a $2 million award.
They are among 373 grants that the U.S. Department of Justice abruptly terminated in April. The largest share of the nixed awards were designated for community-based violence intervention — programs that range from conflict mediation and de-escalation to hospital-based initiatives that seek to prevent retaliation from people who experience violent injuries.
Gun violence is among America’s most deadly public health crises, medical experts say.
Among programs whose grants were terminated were those for protecting children, victims’ assistance, hate-crime prevention, and law enforcement and prosecution, according to an analysis by the Council on Criminal Justice, a nonpartisan think tank. The grants totaled $820 million when awarded, but some of that money has been spent.
“Not only are these funds being pulled away from worthy investments that will save lives,” said Thomas Abt, founding director of the Violence Reduction Center at the University of Maryland, “but the way that this was done — by pulling authorized funding without warning — is going to create a lasting legacy of mistrust."
The Justice Department “is focused on prosecuting criminals, getting illegal drugs off the streets, and protecting all Americans from violent crime,” according to a statement provided by agency spokesperson Natalie Baldassarre. “Discretionary funds that are not aligned with the administration’s priorities are subject to review and reallocation, including funding for clinics that engage in race-based selectivity.”
The Council on Criminal Justice analysis of the terminated grants found that descriptions of 31% of them included references to “diversity,” “equity,” “race,” “racial,” “racism,” or “gender.”
Baldassarre’s statement said the department is committed to working with organizations “to hear any appeal, and to restore funding as appropriate.” Indeed, it restored seven of the terminated grants for victims’ services after Reuters reported on the cuts in April.
But the cuts have already prompted layoffs and reductions at other organizations around the country. Five groups filed a lawsuit on May 21 to restore the grants in their entirety.
Joseph Griffin, executive director of the Oakland nonprofit Youth Alive, which pioneered hospital-based violence intervention in the 1990s, said his organization had spent only about $60,000 of its $2 million grant before it was axed. The grant was primarily to support the intervention program and was awarded for a three-year period but lasted just seven months. The money would have helped pay to intervene with about 30 survivors of gun violence to prevent retaliatory violence. He’s trying to find a way to continue the work, without overtaxing his team.
“We will not abandon a survivor of violence at the hospital bedside in the same way that the federal government is abandoning our field,” he said.
The cuts are also hitting St. Louis, often dogged by being labeled one of the most dangerous cities in America. The city created an Office of Violence Prevention with money available under former President Joe Biden, and various groups received Justice Department grants, too.
Locals say the efforts have helped: The 33% drop in the city’s homicide rate from 2019 to 2024 was the second-largest decrease among 29 major cities examined by the Council on Criminal Justice.
“I don't think there's any doubt that there's some positive impact from the work that's happening,” said University of Missouri-St. Louis criminologist Chris Sullivan, who received a grant from the Justice Department to assess the work of the city’s new Office of Violence Prevention. That research grant remains in place.
But the Justice Department slashed two other grants in St. Louis, including $2 million for Power4STL. The nonprofit operates the Bullet Related Injury Clinic, dubbed the BRIC, which provides free treatment for physical and mental injuries caused by bullets.
The BRIC had about $1.3 million left on its grant when the award was terminated in April. LJ Punch, a former trauma surgeon who founded the clinic in 2020, said it was intended to fund a mobile clinic, expand mental health services, evaluate the clinic’s programs, and pay for a patient advisory board. The BRIC won't abandon those initiatives, Punch said, but will likely need to move slower.
Keisha Blanchard joined the BRIC’s advisory board after her experience as a patient at the clinic following a January 2024 gun injury. Someone fired a bullet into her back from the rear window of a Chevy Impala while Blanchard was out for a lunchtime stroll with a friend from her neighborhood walking group. The shooting was random, Blanchard said, but people always assume she did something to provoke it. “It’s so much shame that comes behind that,” she said.
The 42-year-old said the shooting and her initial medical treatment left her feeling angry and unseen. Her family wasn’t allowed to be with her at the hospital since the police didn’t know who shot her or why. When she asked about taking the bullet out, she was told that the common medical practice is to leave it in. “We're not in the business of removing bullets,” she recalled being told. At a follow-up appointment, she said, she watched her primary care doctor google what to do for a gunshot wound.
“Nobody cares what's going to happen to me after this,” Blanchard recalled thinking.
Before she was referred to the BRIC, she said, she was treated as though she should be happy just to be alive. But a part of her died in the shooting, she said. Her joyful, carefree attitude gave way to hypervigilance. She stopped taking walks. She uprooted herself, moving to a neighborhood 20 miles away.
The bullet stayed lodged inside her, forcing her to carry a constant reminder of the violence that shattered her sense of safety, until Punch removed it from her back in November. Blanchard said the removal made her feel “reborn.”
It’s a familiar experience among shooting survivors, according to Punch.
“People talk about the distress about having bullets still inside their bodies, and how every waking conscious moment brings them back to the fact that that's still inside,” Punch said. “But they're told repeatedly inside conventional care settings that there's nothing that needs to be done.”
The Justice Department grant to the BRIC had been an acknowledgment, Punch said, that healing has a role in public safety by quelling retaliatory violence.
“The unhealed trauma in the body of someone who's gotten the message that they are not safe can rapidly turn into an act of violence when that person is threatened again,” Punch said.
Community gun violence, even in large cities, is concentrated among relatively small groups of people who are often both victims and perpetrators, according to researchers. Violence reduction initiatives are frequently tailored to those networks.
Jennifer Lorentz heads the Diversion Unit in the office of the St. Louis Circuit Attorney, the city’s chief prosecutor. The unit offers mostly young, nonviolent offenders an opportunity to avoid prosecution by completing a program to address the issues that initially led to their arrest. About 80% of the participants have experienced gun violence and are referred to the BRIC, Lorentz said, calling the clinic critical to her program’s success.
“We're getting them these resources, and we're changing the trajectory of their lives,” Lorentz said. “Helping people is part of public safety.”
Punch said the BRIC staffers were encouraged during the Justice Department application process to emphasize their reach into St. Louis’ Black community, which is disproportionately affected by gun violence. He suspects that emphasis is why its grant was terminated.
Punch likened the grant terminations to only partially treating tuberculosis, which allows the highly infectious disease to become resistant to medicine.
“If you partially extend a helping hand to somebody, and then you rip it away right when they start to trust you, you assure they will never trust you again,” he said. “If your intention is to prevent violence, you don't do that.”
Bram Sable-Smith wrote this story for KFF Health News.
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Students affected by the 2023 campus shooting at the University of Nevada, Las Vegas - that killed three people and injured three others - are calling out Gov. Joe Lombardo for his recent veto of Senate Bill 156. The legislation would have established a special counsel for gun violence prevention under the Nevada Attorney General's Office.
Imer Cespedes-Alvarado, founder and executive director with Youth Voice of Nevada, said while Lombardo's decision feels like a betrayal, the veto isn't an end to their ongoing battle to ensure Nevada is a safer place.
"This bill was proposing a bridge between the community and elected officials to make sure that we can get rid of those political left or right-wing messaging regarding gun violence," he explained.
He added that backers of the bill included grassroots organizers and UNLV students of diverse political backgrounds. Lombardo said the bill "took the wrong approach," and added that the special counsel would have been granted "broad authority." In a statement, the National Rifle Association thanked Lombardo for his "continued commitment to protecting the second amendment."
The legislation would have also supported educational campaigns on firearm safety and suicide prevention as well as collected data on arrests and prosecutions related to violations of firearm laws.
Allister Dias, Youth Voice of Nevada member, argued Lombardo's reasoning to veto the measure doesn't make sense given the bipartisan support for the bill.
"The reasoning that he provided is for lack of a better phrase a slap in the face to many of the students who said 'Hey, we're not going to make this one sided, we're not going to subscribe to one side of the political aisle,'" he explained.
While Dias wishes the governor would have signed the bill, he said he is content in seeing people of different political thoughts and opinions come together and hear each other out.
"I think that to me really opened my eyes because it shows me that in order for Nevada to make any change, regardless of the issue at hand, it is important for us to work together on both sides of the political aisle," he continued.
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CLARIFICATION: The grant from Pennsylvania Commission on Crime and Delinquency is helping to keep program staff employed. An earlier version of the story said it was helping to expand the program. (10:33 a.m. MDT, May 28, 2025)
Memorial Day's mass shooting in Philadelphia runs counter to what had been a 38% decline in gun-related homicides in the state but federal funding cuts now threaten key gun violence prevention programs.
The Cure Violence program run by New Kensington Community Development Corporation, is one of 350 groups learning their Justice Department grants would end early.
Amy Perez, vice president of programs for the group, said the cuts affect their entire outreach effort, from a youth basketball league to housing services and nutrition programs.
"The original contract was $1.5 million, and about a third of that is a subcontract with Temple University's Center for Urban Bioethics," Perez explained. "About a million of that was meant to fund the program here at NKCDC, and we had about $900,000 left on that contract."
The Trump administration has said services for victims will not be affected. Perez noted her group is now out $260,000 in unreimbursed costs. She added a separate grant from the Pennsylvania Commission on Crime and Delinquency is helping to keep program staff employed.
Tyreek Counts, Cure Violence program coordinator for the New Kensington Community Development Corporation, is gearing up for a Gun Violence Awareness Month event in June and seeking funding to support it. He pointed out the group takes a public health approach, helping people through jobs, trauma counseling, court advocacy and daily outreach.
He added the efforts are making a difference, with homicides in Kensington down 54% and shootings down 44%.
"We try to come help them and try to change their thinking patterns," emphasized. "Basically, get them to understand a bigger picture. Get them to understand that there's more than life than the streets, and that they can make it if they try. That's our mission every day."
Adam Garber, executive director of the CeaseFirePA Education Fund, said his group has seen this play out in other states in previous decades where programs successful at reducing gun violence have resources pulled from them.
"When we think about what the Trump administration is doing, these cuts are wrong on the dollars and cents and on the moral obligation," Garber asserted. "If they continue to go forward and expand, the second Trump administration's probably going to tie the first for a record that no one wants, which is the largest increase in homicides in U.S. history."
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