The death of Keith Emerson, the legendary rock keyboardist who was one of the founders of Emerson, Lake & Palmer, has been ruled a suicide. Billboard reports that the Santa Monica Police confirmed the ruling, saying Emerson suffered a self-inflicted gunshot wound to the head.

Emerson died Thursday at his home in Santa Monica, as we reported last week. He was 71.

His ELP bandmate Carl Palmer wrote in a post on Facebook: “I am deeply saddened to learn of the passing of my good friend and brother-in-music, Keith Emerson. Keith was a gentle soul whose love for music and passion for his performance as a keyboard player will remain unmatched for many years to come.”