Elliot Rodger killed six people and injured fourteen others before killing himself in Isla Vista, California on May 23, 2014, near the campus of University of California, Santa Barbara. These killings drew media attention to the concept of involuntary celibacy, and particularly the misogyny and glorification of violence that are a mainstay of many incel communities. Rodger self-identified as an incel and left behind a 137-page manifesto and YouTube videos in which he detailed his involuntary celibacy and discussed how he wanted revenge for being rejected by women. He had been an active member of a community popular among incels called "PUAHate" (short for "pickup artist hate"), and referenced it several times in his manifesto. Although "PUAHate" shut down soon after the attack, Rodger became something of a martyr to some communities that remained, and to some of those that emerged later. It is common to see references to "E.R." in incel forums, and mass violence by incels is regularly referred to as "going E.R.". Rodger has been referenced by the perpetrators or suspected perpetrators of several other mass killings, and is one of several attackers who are regularly praised by members of incel communities.