Anti-ICE gunman Joshua Jahn carefully plotted his assault on immigration officers before taking up a sniper position on a Dallas rooftop, and expressed a desire to instill “terror” in agents, new information released by the FBI reveals.
A handwritten note recovered by investigators said, “Hopefully this will give ICE agents real terror, to think, ‘is there a sniper with AP [armor piercing] rounds on that roof?'”
But despite his apparent stated wish to harm immigration agents, the only victims of his attack were three detained migrants, one of whom was killed and two others left in critical condition.
Jahn, who opened fire at a van near the entrance of an ICE field office in Dallas on Wednesday morning, had also conducted multiple searches of the “Charlie Kirk Shot Video” between Sept. 23 and 24, just before the shooting, FBI Director Kash Patel said in an X post Thursday.
Joshua Jahn carefully plotted his attack, the FBI revealed. Collin County Jail
Jahn conducted multiple searches of the “Charlie Kirk Shot Video,” FBI Director Kash Patel shared. Jack Gruber-USA TODAY via Imagn Images
Ammunition found at the scene of a shooting at a Dallas, Texas, ICE facility on September 24, 2025. X/@FBIDirectorKash
Law enforcement agents look around the roof of a building near the scene of the shooting. APHe also searched for apps that tracked the presence of ICE agents, and downloaded a document titled “Dallas County Office of Homeland Security & Emergency Management,” which the FBI said contains a list of DHS facilities.
Patel said the trove of evidence recovered in the investigation so far “indicates a high degree of pre-attack planning.”
Jahn indiscriminately fired at the facility from the roof of an immigration lawyer’s office near the Dallas facility.
He then took his own life.
