penn state student at a campus fraternity house. ems responding to a 911 call from the beta theta pi just before 11:00 friday morning. 19-year-old timothy piazza found unconscious, he was rushed to the hospital, but died a day later. fraternity members told police the sophomore fell down the basement steps almost 12 hours earlier around 11:00 p.m. during a party. an autopsy today revealing multiple traumatic injuries due to a fall. alcohol in piazza's system. the coroner says the death appears accidental. >> i was notified by the dauphin county coroner on saturday morning that mr. piazza was pronounced dead. >> reporter: what's not clear is why no one called for help until the following morning. tonight, piazza's family is remembering a vibrant young man. his brother mike, writing on facebook that tim's "sole mission in life was to make other people smile." penn state has suspended the fraternity, and they are saying they are cooperating with police, and they are hoping surveillance cameras inside the house will shed light on how this tragedy unfolded, david.