In an interview just shown on KWTV-9, OU president David Boren said this student had a history of emotional problems.
He added that, contrary to popular speculation, classes are NOT cancelled for OU students tomorrow.
And right after Boren, the OK Director of Homeland Security said this is a big investigation headed by the FBI and the puzzle pieces are just being assembled.
Got the impression that he wasn't buying into the depression theory totally.