How does this sound? He knew about Sandusky as far back as 1998. The stuff he wanted to purge from his hard drive incriminated a lot of Penn State people. He suffered from depression. He did not want to be known as the one who brought down Penn State, but he couldn't live with himself knowing what was going on.
He killed himself and destroyed the evidence.
Had he killed himself, then where did he do it, and how did he get there without his car? His car was found first, no body nearby, nor anywhere else for that matter.
Doesn't wash...
the infowarrior