The FBI released an image showing a magazine of rounds that features anti-ICE messaging following a shooting at an ICE facility in Dallas, Texas on Wednesday, Sept. 24, 2025. (FBI)

“These despicable, politically motivated attacks against law enforcement are not a one-off,” Patel said. “We are only miles from Prairieland, Texas, where just two months ago an individual ambushed a separate ICE facility targeting their officers. It has to end and the FBI and our partners will lead these investigative efforts to see to it that those who target our law enforcement are pursued and brought to the fullest extent of justice.”

Larson said that law enforcement officers searched Jahn’s residence and found loose notes which detailed a “game plan” of the attack as well as target areas at the facility. Jahn called ICE employees individuals who showed up to collect a “dirty paycheck” and wrote that he intended to “minimize” any collateral damage or injury to detainees, Larson said.

Jahn said in one of the notes that “it was just me,” Larson said.

“The tragic irony for his evil plot here is that it was a detainee who was killed. And two other detainees that were injured when he fired into the sally port,” Larson said. “He also hoped his actions would give ICE agents real terror of being gunned down. And he did this to induce constant stress in their lives. He hoped his actions would terrorize ICE employees and interfere with their work, which he called human trafficking.”

Patel was in Dallas on Wednesday for a “prescheduled visit” and visited the incident command center.

Fox News’ Anders Hagstrom and Greg Norman contributed to this report.