The second altercation appears to definitely be a key in some way. They were taking a summer session, right? If so, has it been confirmed that CR's roomie had a test that Friday? He claims to have been studying at 3 AM - why? If he didn't have a test, he had the whole weekend to study. I understand that many kids want to free up their weekend to party, but why not Sunday afternoon/evening? During most summer sessions, kids take 1-2 classes only. It's not that hard to build in study time. His roommate was out at the bar and he chose to stay home to study? He continues to study when he has the opportunity to party with Lauren? Certainly, this is the behavior I'd want of my own son, but if these guys are the big party crowd they've been portrayed to be, I find it odd. Perhaps I'm wrong - maybe this was finals week and not summer session yet. If so, then maybe he had a final on Friday. Either way, I think they should look into that and have it confirmed. Ask him to produce notes that he was reviewing, etc.