The alleged gunman who killed at least six and injured seven near the campus of UC Santa Barbara Friday has been identified by a family attorney as Elliot Rodger, 22. Rodger appears in a haunting YouTube video called “Retribution” in which he describes a tortuous life of “loneliness, rejection and unfulfilled desires, all because girls have never been attracted to me” and lays out his plans to slaughter members of a sorority.

His identification sent Rodger’s name trending, as well as spurred discussion of “incel,” or involuntary celibacy.

Rodger is said to have been a member of an Internet forum called, which describes itself as the “Anti-Pickup-Artist Movement.” He is also said to have been an “men’s rights activist,” or MRA.