Looks like that one may have been a self release :
Before driving to the sorority house, Rodger uploaded a video to YouTube titled "Elliot Rodger's Retribution", in which he outlined his planned attack and his motives. He explained that he wanted to punish women for rejecting him, and sexually active men because he envied them. He also emailed a lengthy autobiographical manuscript to friends, his therapist and family members; the document appeared on the Internet and became widely known as his manifesto. https://en.wikipedia.org/wiki/2014_Isla_Vista_killings