Devo guitarist Bob Casale (aka Bob2), has died of heart failure, age 61. Casale was one of the original members of Devo along with his older brother, Gerald Casale. Bob wrote the guitar line for the track which became Devo's version of "Satisfaction", and programmed Devo's early sequencers. He originally trained as a radiologist but left his job to go on the road with Devo in 1977. In the 1990s he began working with fellow Devo member Mark Mothersbaugh as an engineer and technician at Mothersbaugh's music production company, Mutato Muzika, a stint that included working on the TV series Rugrats.