Jay Bennett, former multi-instrumentalist for the band Wilco, died of a drug overdose, according to coroner's reports.
Champaign, Illinois County Coroner Duane Northrup says tests show the 45-year-old musician died from fentanyl. The drug is found in patches commonly prescribed to treat chronic pain.
Jay Bennett died 24 May after being found unresponsive in his home in Urbana, Illinois.
Bennett worked as a sound engineer and played a variety of instruments for Wilco from 1994 to 2001. In early May, he sued Wilco leader Jeff Tweedy, claiming that he was owed £33,000 ($55,000) for back royalities during his seven years with the band.
In the video below, Bennett contributes piano to the track Cars Can't Escape, from the Wilco documentary I Am Trying To Break Your Heart.