Michael Madsen's manager previously said, 'What we understand is Michael had a cardiac arrest and was found unresponsive in his Malibu home' on July 3. The 'Kill Bill' actor was 67.

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.

Madsen's doctor said heart failure will be listed as the cause of death, with heart disease and alcoholism named as contributing factors.