he was making sounds and they're like he's going to be fine. and i said we actually need call 911. >> you were trying to sound the alarm. what was their response to you? >> the response was you are over reacting and at that point someone gets off the couch, they're just very angry. they shove me against the wall. i wasn't expecting my own fraternity brother to assault me. so i'm like honestly tim could have a concussion. we need wake him up, call 911 and get him to a hospital. they said thats rar myth. we're biology majors. this is what we do. >> cnn reached out to both beta brothers for comment. neither they or their lawyers responded. close to midnight. a brother sends a group text message. piazza might actually be a problem. he fell 15 feet down a flight of