PULLMAN, Wash. - The Whitman County coroner concluded Thursday Washington State quarterback Tyler Hilinski committed suicide.

The 21-year-old Hilinski was discovered in his apartment after he didn't show up for practice Tuesday. A rifle "was recovered next to Hilinski and a suicide note was found," according to the Pullman Police Department.

Hilinski, a backup the past two seasons, was the presumed starter for the Cougars heading into his junior season.