The man accused of killing political activist Charlie Kirk is being held without bail after a Utah judge ordered his detention Friday. Judge Shawn Rice Howell cited the seriousness of the charges—aggravated murder, felony firearm discharge, and obstruction of justice. Formal charges are still pending.

Investigators recovered a high-powered bolt-action rifle believed to be the murder weapon in a wooded area where Tyler Robinson, 22, allegedly fled. The FBI Laboratory is analyzing the firearm along with prints and other evidence. Ammunition found nearby featured strange engravings tied to internet culture, including phrases from video games like Helldivers 2, the anthem Bella Ciao, and references to niche online subcultures. Experts say such symbols may serve as in-group codes, though their meaning remains unclear.

Authorities say Robinson’s father, a retired law enforcement officer, recognized him from surveillance footage and confronted him. Robinson reportedly confessed and threatened self-harm. A youth pastor helped de-escalate the situation before federal agents intervened. He was arrested late Thursday night.

Utah Governor Spencer Cox and former President Donald Trump have both expressed support for the death penalty in this case. Utah Attorney General Derek Brown said “everything is on the table.”

Robinson, a scholarship student at Utah State University, lived in Washington, Utah—about 260 miles from the shooting site. Relatives told investigators he had grown increasingly political and had mentioned Kirk’s upcoming appearance at Utah Valley University.

FBI Director Kash Patel praised the rapid investigation, noting that over 11,000 tips were received within 33 hours.

Robinson remains in custody as prosecutors build their case.