PORTLAND, Ore. (AP) — Oregon authorities have released a detailed report on a mass shooting at a community college that includes a six-page, typewritten "manifesto" that says the shooter had studied the methods of other mass killers.
The report was released Friday involving the attack by 26-year-old Christopher Harper-Mercer that left nine people dead and eight others injured in 2015 at Umpqua Community College in Roseburg, Oregon.
In the document left on a thumb drive for police to find, Harper-Mercer says he serves the "demonic Hierarchy" and will become a demon when he dies and return "to kill again and again."
He also makes it clear that he idolizes other mass shooters and says he has studied their methods to figure out how to kill more people.
Harper-Mercer committed suicide after he was injured by police during the Oct. 1, 2015, shooting.
Authorities found nine guns stashed in his backpack, in a college restroom and at his home.