The national headquarters for the Sigma Alpha Epsilon fraternity has launched its own investigation into its University of Idaho chapter following the death of a student Sunday morning after he attended a party there the night before. Joseph Wiederrick, 18, (pictured) was found dead under a bridge along Paradise Creek two miles north of Moscow on Mountain View Road on Monday after a nearly two-day search. It started when his roommate reported he never returned to their Theophilus Tower dorm room after they had gone to visit a friend at the SAE house Saturday night. A coroner's report Wednesday confirmed Wiederrick died Sunday from hypothermia, but it will take up to three weeks to get the results of a toxicology screening. Moscow Police Chief David Duke said details surrounding Wiederrick's time at the SAE house are still being gathered/Moscow-Pullman Daily News. More here.