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In a matter of days, authorities have revealed a trove of information about Cole Allen after he allegedly tried to assassinate President Donald Trump, while the public has learned little about Thomas Crooks nearly two years after his assassination attempt.
The contrast raises new questions about transparency and what remains unknown about Crooks’ shooting of Trump, and experts say the explanation may be simpler than it seems.
In the latest case, investigators quickly developed a clearer picture of the suspect’s apparent grievances, communications and alleged planning. But in the Crooks case, key questions about motive and mindset have lingered long after the shooting, fueling speculation about what investigators know and why the public still knows so little.
Experts who study assassination attempts and targeted violence say the difference often comes down to evidence.
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Law enforcement personnel detain Cole Tomas Allen, a suspect in the shooting incident at the White House Correspondents’ Association dinner in Washington, D.C., on April 25, 2026. (Donald J Trump via Truth Social/Handout via Reuters)
Sometimes, they say, one offender simply leaves behind far more information than another.
Allen, a 31-year-old California computer scientist, is accused of opening fire at the White House Correspondents’ Association Dinner on Saturday, April 25, after allegedly rushing a Secret Service checkpoint armed with multiple weapons. He now faces federal charges, with more expected.
By contrast, Crooks, who carried out the 2024 assassination attempt against Trump at a rally in Butler, Pennsylvania, was shot and killed at the scene, limiting the scope of the investigation and what information became public.
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Thomas Matthew Crooks, a 20-year-old from Bethel Park, Pennsylvania, attempted to assassinate former President Donald Trump during a 2024 campaign rally before being shot and killed by Secret Service agents. (Obtained by Fox News Digital)
“There really just isn’t always an answer. There isn’t always a clear motive,” Nicole Parker, former FBI special agent, Fox News contributor and author of “The Two FBIs,” told Fox News Digital.
Parker said in some cases, investigators are left with very little to work from, especially when a suspect has few connections or leaves behind a limited digital footprint.
“I don’t believe the FBI is hiding anything,” Parker said. “There’s probably just not as much evidence in that case to point investigators in a clear direction.”
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A photo of Cole Allen in a graduation gown and cap from 2025. (Cole Allen/LinkedIn)
At the same time, Parker said more information is emerging quickly in the Allen case in part due to a broader push for transparency.
“The Trump administration is focused on getting facts out quickly to avoid conspiracy theories,” she said, noting officials are releasing information “to the extent possible without compromising the investigation.”
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“Every case is different,” the FBI said in a statement to Fox News Digital. “When a prosecution is pending, the FBI works closely with prosecutors on what can be released without interfering with the trial process. The FBI and the Department of Justice, along with our local partners, have had multiple press briefings since Saturday’s shooting. Because this is an ongoing investigation as well as ongoing legal process, the FBI cannot comment further at this time.”
Forensic psychiatrist Park Dietz, an expert on criminal behavior, said the difference between the two cases often starts with the suspect.
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Dietz, president of Park Dietz & Associates and founder of the Threat Assessment Group, has worked on some of the nation’s most high-profile criminal cases, including those involving Reagan shooter John Hinckley Jr., serial killer Jeffrey Dahmer and the Unabomber.
In Allen’s case, Dietz said, the suspect appears to have left investigators with far more to analyze.
“Allen left a bigger trail,” Dietz said. “He had contact with more people. He wrote a lot online. And he, of course, sent this missive at the last moment explaining his actions.”
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A Secret Service agent fires at Cole Allen, suspected in the assassination attempt of President Donald Trump at the White House Correspondents’ Association Dinner on Saturday, April 25, 2026. (Obtained by The Washington Post)
Dietz said that kind of trail, communications, writings and personal contacts can accelerate how quickly investigators and the public understand a suspect’s mindset.
“Some of this is determined by the offender,” Dietz said. “How public are they going to be about their motives and nature of their grievances?”
Dietz said early indicators point to a familiar pattern seen in these types of cases.
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“It’s very clear that this is primarily a grievance,” he said. “The fact that he wrote to his family, justifying his actions and explaining why he was taking them indicates that he’s aware that this is going to become public information, that it will be a historical document.”
“So there is a fame-seeking portion of this,” Dietz added. “But grievance is the primary motivation.”
Reid Meloy, a forensic psychologist and former consultant to the FBI Behavioral Analysis Unit, said the Crooks case differs in one key way — it never moved toward prosecution.
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Former President Donald Trump pumps his fist with blood on his face while Secret Service agents rush him from the stage at a campaign rally in Butler, Pa., on July 13, 2024. (Evan Vucci/AP)
“Crooks obviously was killed by the Secret Service,” Meloy said. “So there is not going to be an active prosecution of an individual.”
That distinction, Meloy said, affects how much information is gathered and ultimately made public.
“With the Allen case, this will be headed for an active prosecution,” Meloy said. “And therefore the data gathering will typically be much more comprehensive and much more meticulous in order to gather evidence for the prosecution of the case.”
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“That’s probably the major reason you see differences in how much information and when it is presented to the press and the public,” Meloy added.
“That typically does not occur when there has either been the death of the perpetrator,” he said, noting those cases are generally limited to after-action analysis rather than full trial preparation.
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Meloy said another key factor is how much information a suspect leaves behind.
“People need to appreciate that individuals who carry out these acts will vary greatly in how much data they’re going to leave behind,” he said.
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Meloy added that some suspects leave extensive online activity and communications that can be analyzed, while others leave very little.
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“In other cases, there may be a very, very low amount of presented material online,” Meloy said. “Some of them will be very, very careful and engage in what we call operational security where they don’t want information to be left behind,” he said, noting that can leave investigators with little to reconstruct after the fact.
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Even when warning signs exist, they are often missed.
“In 60 to 90 percent of the time, they will engage in what we call leakage,” Meloy said, referring to when individuals communicate their intent before an attack. “Sadly, that communication oftentimes doesn’t emerge until after the attack has occurred.”
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