Investigators tracked down Tyler Robinson, the suspect in the shooting of political activist Charlie Kirk, largely through text messages exchanged between Robinson and his 22-year-old roommate, Lance Twiggs. Robinson lived in a townhouse in St. George, Utah, with a partner identified as a transgender woman, who is cooperating with authorities and faces no charges.

The FBI obtained communications revealing plans for the shooting, including instructions about retrieving a rifle from a drop point, customizing the firearm, and changing clothes to avoid detection. Court documents also detail recovered evidence like footwear impressions, a palm print, and a forearm print.

Robinson’s grandmother denied he had any interest in guns, claiming he never hunted or owned firearms. Despite this, Robinson is held without bail on initial charges of aggravated murder, firearm discharge, and obstruction of justice. A high-powered bolt-action rifle was found near his flight path and is being analyzed by the FBI.

Ammunition found near the rifle had engraved phrases referencing memes, video games, and internet subcultures. Experts say such markings can have layered meanings but emphasized no motive has been established.

Robinson’s father recognized him in public images and confronted him, leading to Robinson’s confession. Although Robinson reportedly threatened suicide, a youth pastor helped calm him until the FBI took him into custody.

Utah prosecutors have not yet decided on pursuing the death penalty, but the case has drawn national attention, with support for capital punishment expressed by former President Donald Trump and Utah Governor Spencer Cox. Meanwhile, a social media account linked to Robinson’s mother was deleted, with no official explanation given.