Authorities are examining the online activity of the 22-year-old suspect charged in the fatal shooting of conservative speaker Charlie Kirk, as experts warn that digital subcultures are increasingly fueling acts of violence.

A Calculated Attack

In a crime that shocked the nation, 22-year-old Tyler Robinson is accused of carrying out what investigators describe as a carefully planned assassination. Unlike most mass shooters who expect to die during their attacks, an expert tells Fox News Digital that Robinson devised escape routes and left behind a detailed digital trail.

“This one is incredibly interesting because of how long he says, through the text that has been disclosed, he had been planning this and for how long it seems like he laid in wait,” said George Brauchler, a prosecutor who has handled some of the nation’s most high-profile mass shootings.

“Most of them have no plans to escape. They have plans to die right there, either by their hand or the good guys who stop them. But this is someone who planned to get away with this. He’s different in a way.”

Brauchler says prevention begins with vigilance.

“See something, say something, if it gives you concern,” Brauchler emphasized, recalling how tips thwarted two teenagers plotting an attack at Mountain Vista High School. “That’s how this thing got disrupted before they were able to pull it off. It was a nosy mom and an anonymous student tip.”

He also advocates for armed school resource officers in every building.

Law enforcement officers and emergency personnel respond to a shooting at Evergreen High School in Evergreen, Colorado on Wednesday, Sept. 10, 2025.  (Hyoung Chang/MediaNews Group/The Denver Post)

“Mass shooters are cowards, Brauchler said bluntly. “They plan from the standpoint of two beliefs. One, that they will have the upper hand because of surprise, and two, they will have the upper hand because they will be the only guns in the school. It’s not 100% guarantee, but they tend not to act when they see a uniformed officer.”

Still, he acknowledged that no system can guarantee safety.

“Evil exists,” he said. “But when communities remain alert and law enforcement has the tools to monitor threats, tragedies can be prevented.”

Stepheny Price covers crime including missing persons, homicides and migrant crime. Story tips: stepheny.price@fox.com.