Noted Washington, D.C.-area punk and metal bassist Vance Bockis has died at the age of 50. The musician, who played in such bands as the Obsessed, 9353 and Pentagram, in addition to fronting the Factory, passed away at his home in Fairfax County, Va., on Saturday (Sept. 1) from complications following shoulder surgery.

WTOP reports that Bockis had a history of heroin addiction that left him emaciated and contributed to the Factory potentially losing a big break with CBS Records. His recovery was chronicled in the 2010 documentary, 'Shift.' "I should be dead or I should be in prison," stated the rocker in the film.

The bassist's wife, Linda Leisz Bockis, told the station that the bassist had been clean for six years. He entered the hospital to be treated for rotator cuff surgery and was preparing to play with the re-formed 9353, who recorded new material earlier this year.

A service for Bockis will be held Sept. 13 in Fairfax, Va.

Watch the Vance Bockis Documentary 'Shift'