[mutley]

Seems he initially shot the two to death, wandered over to his dorm room, knowing the would eventually get him for the first murders, he apparently has plenty of time, he puts together a package of photos, videos and writings, drops it in the mail, loads up his weapons, extra clips and decides to go out in a bloody murderous blaze.

Yes, this makes the most sense to me. That it just evolved that day, into what transpired. He may have had numerous thoughts about doing it, but not concrete. It makes no sense otherwise, because there was risk of being stopped in the long period of time between, if it were all planned the way it went. My question is, what caused his explosion on that particular morning?

[dragnet2]

We could have been hearing the .22 going off, he may have reloaded and then used the 9mm. Or it could have been law enforcement going though the chained door.