Overview

• Gov. Spencer Cox said the suspect lived with a romantic partner transitioning from male to female who had no prior knowledge of the attack and is assisting investigators.
• Tyler Robinson, 22, is being held without bail in Spanish Fork on initial counts including aggravated murder, felony discharge of a firearm and obstruction of justice.
• Investigators recovered a high‑powered bolt‑action rifle and shell casings engraved with phrases tied to gaming culture and anti‑fascist references.
• Digital messages described retrieving a stashed rifle near Utah Valley University, and relatives identified Robinson from released images and contacted authorities.
• Cox said Robinson is not cooperating as detectives examine motive and possible online radicalization, with formal charges expected Tuesday.