The revelation conflicts with the university’s statements that James Holmes was denied access to non-public parts of the campus because he had withdrawn from school.
Holmes faces 152 charges in the July shooting at a midnight premiere of the latest Batman movie that killed 12 people and injured 5. His lawyers argue he is mentally ill, raising the possibility that Holmes will plead not guilty by reason of insanity.
The name of the professor Holmes threatened has been blacked out. Prosecutors say the professor reported the threats to the university. In court testimony Aug. 30, University of Colorado psychiatrist Lynne Fenton, a professor at the school, said she contacted campus police after meeting with Holmes on June 11.