Jambands.com further reports: While details remain scant, it is believed he passed away at his Manhattan home in the early hours of Monday morning. He was 42.

Feinstein was most recently known for his role in Ryan Adams & The Cardinals which he joined in 2006, replacing original bassist Catherine Popper. As a member of the Cardinals, Feinstein appeared on Adams' releases Easy Tiger, Follow the Lights and Cardinology. It was Adams who dubbed Feinstein "Space Wolf." - Read their full report here