The Athens County Coroner says last year's death of an Ohio University student from Dublin was caused by asphyxiation due to nitrous oxide ingestion.
The coroner also found 18-year-old Collin Wiant had marijuana and alcohol in his system. His family has filed a lawsuit against the Sigma Pi fraternity, claiming the death resulted from hazing. The frat says it is hiring legal counsel, which will determine if a public comment is appropriate.