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Oregon shooter's manifesto reveals anger at not having a girlfriend
Christopher Harper-Mercer, who executed nine people at an Oregon community college, wrote manifesto in which he said he thought everyone else was "crazy"
The British-born gunman who carried out a mass shooting at a college in Oregon left behind a manifesto in which he ranted about having no girlfriend.
Chris Harper-Mercer, 26, also wrote: "Other people think I'm crazy but I'm not. I'm the sane one."
Police did not release his full manifesto, which was described as a couple of pages long, but said the killer appeared to have considered himself rational while believing that everyone else was not.
They also said Harper-Mercer's mother had told them he was struggling with mental health issues.
It had previously been disclosed that the gunman had complained in a note that he had "no life" and that he felt the world was against him.
The manifesto reportedly had "666" written on it along with Satanic pentagrams, and Harper-Mercer was said to have written "I am going to die friendless, girlfriendless and a virgin".
He was believed to have stored the manifesto on a flash drive then given it to an 18-year-old student who he allowed to live.
Summer Smith, the mother of the teenager who was given the flash drive, said Harper-Mercer had called her son the "lucky one" and told him to sit at the back of the room while his classmates were killed.
Miss Smith told CNN: "He'll never feel the same and he'll never feel complete security again. He doesn't know how to deal with it right now. He lived and for that he feels guilty."
He will travel to Roseburg, a bucolic timber and ranching community 180 miles south of Portland.
Larry Rich, the Republican Mayor of Roseburg, and self-described gun rights advocate, said: "He's our president and we would love to have him here."
But David Jaques, publisher of the Roseburg Beacon newspaper, claimed Mr Obama was "not welcome" and accused him of "grandstanding for political purposes".
Lessons were due to resume at the college of 13,000 students next week but some students returned to the campus early to pick up belongings they had left behind.
A group of eight students held hands and bowed their heads in prayer in front of the building where the shooting happened.
Madysen Sanchez, a student, said: "I needed to be here. I needed to come and see my friends, make sure they're OK."
Jared Norman, another student, said: "The anxiety of walking back on campus is very real but it begins the road to recovery."