Overview

• Tyler Robinson, 22, was arrested after a roughly 33‑hour search and is jailed on suspicion of aggravated murder, firearms and obstruction offenses.
• Axios and other outlets report Robinson lived with a transgender‑identifying partner who is sharing messages with investigators, though officials have not announced a final motive.
• Investigators recovered a Mauser bolt‑action rifle wrapped in a towel near Utah Valley University and found casings engraved with phrases such as “Hey, fascist! Catch!” and other meme references.
• A cooperating roommate provided Discord chats about a wrapped rifle, engraved bullets and a drop‑and‑retrieval plan, while family tips indicating Robinson implied responsibility helped lead to his arrest.
• Formal charges are expected early next week, a public memorial for Kirk is scheduled for Sept. 21 at State Farm Stadium in Arizona, and political leaders from both parties condemned the killing.