Gabrielle Giffords shooting: Frightening, twisted shrine in Arizona killer Jared Lee Loughner's yard
Adjunct Prof. Ben McGahee, 28, worried about violence. "I remember going home and thinking to myself, 'Is he going to bring a weapon to class?'" he told USA Today.
Lynda Sorenson, 52, who was in McGahee's basic algebra class with Loughner, expressed similar fears in emails to friends, The Washington Post reports.
On June 14, she wrote: "We have a mentally unstable person in the class that scares the living crap out of me. He is one of those whose picture you see on the news, after he has come into class with an automatic weapon. Everyone interviewed would say, 'Yeah, he was in my math class and he was really weird.' I sit by the door with my purse handy."
In September, college officials sent campus police officers to Loughner's home, where he lives with his parents, with a letter informing him he could not return without a mental health professional's written assurance that hispresence at college would "not present a danger to himself or others."
"It was obvious to everyone that Jared wasn't a normal guy,"said neighbor Anthony Woods, 19. Loughner worked as a volunteer at the Pima Animal Care Center, where he walked dogs and cleaned cages. "He loved animals and was a good worker," said another volunteer.
Loughner had once tried to join the military but was deemed unsuitable, officials said.