Suspected Charlie Kirk shooter Tyler Robinson used Donald Trump’s name as a pseudonym on Valve Corp.’s Steam video-game platform, a fact that’s become part of a profile US law enforcement is building on the alleged assailant.
The US Secret Service has joined the investigation into the shooting, even though Kirk wasn’t under the agency’s protection, according to people with knowledge of the matter.
Agents are working with the FBI to study Robinson’s behavior and online activity, including his use of Trump’s name on Steam, as part of a profile they are building, according to one of the people, asked not to be identified discussing the investigation. The aim is to understand how suspects form grievances, how they select targets and whether their actions signal broader risks to current or former officeholders.
The 11-year-old Steam account, reviewed by Bloomberg, primarily uses Robinson’s longstanding online username. It lists an account that appears to belong to his partner as a friend. Some comments on the account were disabled shortly after Bloomberg reached out to Valve for comment.
Since the Sept. 10 shooting, law enforcement has combed through Robinson’s social-media presence looking for clues about his motives. On bullet casings, the alleged shooter, age 22, used symbols and messages from online subcultures, including the video gameHelldivers 2, which poses questions about fascism and took inspiration from the film Starship Troopers, and the furry fandom, a fantasy community built around animals that behave like people. Robinson played 399 hours of Helldivers 2, according to his Steam profile.
Used by 30 million people at any given moment, Steam is the most popular platform for purchasing and playing personal computer games. Robinson played 2,148 hours of online pirate game Sea of Thieves, according to his profile on the platform.
“If you play alone you will die alone,” he wrote in a review of the game on Steam.