That was one of the lies they caught...They disabled his card because he resigned/withdrew from the school.
I think that is a conflicting story.
http://www.denverpost.com/breakingnews/ci_22962484/cu-says-james-holmes-not-blocked-from-campus.html
On the one hand, you have someone from campus police saying they did disable his access card because of the reported threats to the psychiatrist, on the other hand you have campus administration saying that isn’t true, that they removed his access after he withdrew from the program.
And they might be having a semantics disagreement too. CU admin is saying that they didn’t ban him from campus. Removing key card access is not the same as banning from campus. Campuses are wide open to anyone to access, but the key card gave access to entering buildings after they are closed to the regular public or other restricted areas.