Expelled PSU student wants back in - Koinlocal6.com Also a poll. PORTLAND, Ore. (AP) -- A Portland State University graduate student expelled after allegedly threatening violence against a faculty member wants to return to the university. Henry Liu has filed for an administrative review of his expulsion. A hearing is set for Aug. 3. The university banned Liu from campus this spring after a classmate reported to police that the graduate student was upset with a professor and talked about guns in the same conversation. Police found four unloaded guns in Liu's apartment. Though he was never charged with a crime, the university expelled Liu last month. They allege he furnished misleading information and made himself a possible safety threat. The 33-year-old Liu told The Oregonian newspaper he did not threaten a faculty member, and was expelled based on hearsay.