Cory Monteith, best known for his role on 'Glee,' was found dead in Vancouver's Fairmont Pacific Rim Hotel. He was found on the 21st floor at noon on Saturday after missing his checkout time.

The 31-year-old actor checked into the hotel on July 6 and was expected to check out on Saturday. According to Hollywood Reporter, the hotel video footage shows Monteith returning to his hotel room alone early Saturday morning. There has been no evidence of suspicious activity. CNN reports an autopsy will be conducted on Monday.

Moneith has had issues with drug abuse in the past. Zap2it reported that Monteith finished treatment in a rehabilitation facility this past April.

The actor has played Finn Hudson on 'Glee' alongside his girlfriend, Lea Michele, since 2009. In 2011, he won a Teen Choice award for top actor in comedy.

We send our thoughts to Monteith's loved ones during this time.