Casale passed away on Monday from health complications which led to heart failure, according to his brother Gerald.
A post on the band's Facebook page from Gerald reads: "As an original member of Devo, Bob Casale was there in the trenches with me from the beginning. He was my level-headed brother, a solid performer and talented audio engineer, always giving more than he got. He was excited about the possibility of Mark Mothersbaugh allowing Devo to play shows again. His sudden death from conditions that lead to heart failure came as a total shock to us all."