>> yeah. >> mind you, there was alcohol involved, so -- >> surprising, right. >> right. >> lauren stayed the night in joe's room. and the next day, everybody was moving a bit slowly. >> i did not see lauren that morning. i didn't see joe that morning either. we just kind of assumed they were in the room together. >> and then it was time to buckle down. all of the friends, joe included, went off to cram. >> really, you kind of just go into this hole and study constantly and don't really have any contact with anybody. everyone was kind of in their own world trying to get ready for this, this test that you worked so hard for. so, it's a lot of pressure. you just -- you become a hermit. >> so, it took a few days to realize, no one had heard from lauren. coming up -- no reason yet to assume anything was wrong, but soon, there would be. >> i immediately was like, this isn't right. so, i called her sister,