Hollywood actor Michael Madsen, whose film career spanned decades and included roles in “Reservoir Dogs,” “Kill Bill” and “Donnie Brasco,” died from heart failure, his cardiologist told NBC Los Angele

Doctors have determined the cause of death for actor Michael Madsen, who was found unresponsive last week. Madsen’s cardiologist told KNBC that his patient died from heart failure. The actor’s manager told Entertainment Weekly that the doctor’s declaration was accurate and that heart disease and alcoholism were listed as contributing factors.

"The doctor's report is accurate that he died from heart failure," said Smith, referring to a statement that Madsen's cardiologist made to NBC4 Los Angeles. He added that "heart disease and alcoholism" were named as "contributing factors."