Paul Gray, best-known as the bass player in hardcore band Slipknot, was found dead in his Urbandale, Iowa hotel room on Monday.

Gray, also known as #2 and The Pig, will be autopsied on Tuesday. Investigators related to the case say no foul play is suspected.

Paul was one of the three original members of the band, which has earned a total of 7 Grammy Award nominations. “Before I Forget” won in 2006 for Best Metal Performance.

Gray was busted for cocaine possession in 2003, resulting in a rare photograph of the performer’s face. The bassist habitually wore a mask while playing on stage.