https://www.bbc.com/mundo/articles/c07vz1r0j3ro says he confessed, but the very meager information it provides on his political leanings suggests he was not right-wing; https://edition.cnn.com/2025/09/12/us/tyler-robinson-charlie... says the shooter engraved antifa slogans and symbols on his bullet casings, and that Robinson criticized Kirk to his family for "spreading hate" and registered as an independent voter, not Republican.