FBI Reveals Note From Suspected Dallas Shooter: 'Hopefully This Will Give ICE Agents Real Terror'

FBI Director Kash Patel said Thursday that new evidence indicates the suspect in this week's deadly shooting at a Dallas Immigration and Customs Enforcement facility was motivated by hostility toward the agency.

Patel said through a post on X that the shooter, identified by law enforcement as 29-year-old Joshua Jahn, downloaded a document listing Department of Homeland Security facilities and conducted multiple online searches in the days leading up to the attack, which included ballistics research, ICE agent-tracking apps, and the video of activist Charlie Kirk being shot earlier this month.

Investigators also recovered a handwritten note in which Jahn allegedly wrote, "Hopefully this will give ICE agents real terror, to think, 'is there a sniper with AP rounds on that roof?'"

Authorities said Jahn opened fire from a rooftop on Wednesday morning, striking three detainees being transported into the ICE field office on North Stemmons Freeway. One of the detainees later died. No ICE officers were injured. Jahn died from a self-inflicted gunshot wound as agents closed in.

On Wednesday, Patel had already released photos of unspent ammunition at the scene, showing the words "ANTI-ICE" etched into shell casings. He described the incident as part of a broader "pattern of politically motivated attacks against law enforcement."

The Dallas Observer reported that local advocacy groups, including the Brown Berets have criticized what they describe as a lack of focus on the detainees who were shot. In a joint statement, more than a dozen Dallas-area groups condemned the violence but also pointed to what they called "increasingly hostile anti-immigrant rhetoric" that they believe contributes to such incidents.

The FBI and Department of Homeland Security have said the case is being investigated as targeted violence, while Patel pledged that federal authorities would continue pursuing "to the fullest extent of justice" anyone who attacks law enforcement.