Update 2025-12-05: A while back I revisited this story and found that subsequent evidence seems to show pretty conclusively that Tyler Robinson’s politics really had shifted leftward. I still haven’t found a good answer to why he had Groyper memes engraved on his bullet casings (of all things) if he wasn’t a Groyper, but take the following with a healthy dash of salt.
Charlie Kirk’s shooter wasn’t a “radical leftist,” he was part of an extremist conservative movement called the “Groypers.” The seemingly liberal memes and references engraved on his bullet casings are dogwhistles that the group has appropriated as a deliberate tactic to confuse their opponents and hide their true beliefs. Kirk was killed by someone who thought he wasn’t conservative enough.
In Search of Secrets 