A cause of death for Ikey Owens, the Grammy-winning musician and Jack White keyboardist, has been released. The 38-year-old Owens, who worked with other musical groups like the Mars Volta and Long Beach Dub Allstars, was found dead Tuesday in a hotel in Puebla, Mexico. Nasty Little Man publicists released the following statement:

“The coroner has determined that Ikey Owens died from a heart attack the morning of October 14 at approximately 4 a.m. The only drugs in his room were a small amount of marijuana.”

As we previously reported, Owens, who was born Isaiah Randolph, was staying at the Camino Real Hotel at the time of his death. He was in Mexico touring with Jack White’s band. Third Man Records announced the death of Ikey Owens on their website.

“It is with great sadness that we tell the world of the passing of the incredible musician Isaiah 'Ikey' Owens. He will be missed and loved forever his his family, friends, bandmates and fans,” the band’s statement read. “Ikey was an astounding keyboard player in Jack White’s backing band. He also played with Mars Volta, Free Moral Agents, and many other projects. Out of respect for Ikey, the remaining shows of the Jack White Tour in Mexico have been canceled. We will all miss you Ikey. You were and are an incredible artist.”

Jack White’s tour looks like it will resume in Istanbul, Turkey, on Nov. 7.