biff dropped her off at a party on second street, not far from her house. me how she would try to be friends with everybody. she didn't have, like, a clique or a type. she just had a very contagious personality. you just wanted to be around her. andrea canning (voiceover): at the party, brook met up with a guy she knew named tommy williams. he was one of several guys she liked at the time. how was the dating scene for brook at college? was she-- i don't think she was attached, but she had a lot of friends. andrea canning (voiceover): between 10:00 and 10:30, brook and tommy went to another party thrown by university soccer players. so she must have really liked interacting with people. she loved people. andrea canning (voiceover): at 12:30 am, they left the soccer party and headed toward brook's house. close to 1:00 am, they were spotted by a campus police officer passing the student union. it was the last time brook was seen alive. detectives now had a list of several young men brook had interacted with that saturday afternoon and evening, people they need