Loughner was suspended from Pima Community College in the Tucson area in September after he posted a video on YouTube about the school, The New York Times reported. The video called the college "one of the biggest scams in America."
"This is my genocide school," the video said, with the narrator adding, "We are examining the torture of students."
In October, the college told Loughner he would not be readmitted without a letter certifying he would not be a threat.
The 51 pages of reports from campus security and other officials show a pattern of behavior ranging from angry to withdrawn to simply strange. In one class, Loughner reportedly insisted the number 6 was actually 18.
A report from Aubrey Conover said that in February 2010 Loughner startled a poetry class by saying babies should be wired with dynamite.
"He said that the class had been talking about abortion, which made him think of death, which made him think of suicide bombers, which made him think of babies as suicide bombers," Conover said.
The courses he took were the same eclectic mix as the books he listed as favorites online. They ranged from Bible studies and yoga to sign language and public speaking.