According to the unnamed teen, Fryberg was a popular freshman and a member of the Marysville-Pilchuk football team, but he was recently suspended for fighting.
He was also an avid hunter and gun enthusiast, as evidenced by photos posted on his social media accounts. A few months ago, the teen shared a picture online showing off a new rifle he had received for his birthday.
Earlier this month, the freshman was crowned homecoming prince, but a classmate told CNN that may have been subjected to bullying,
Police Commander Robb Lamoureux told reporters authorities believed that the shooter acted alone, but had no immediate word on a motive.