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.

A cause of death has been revealed for famed character actor Michael Madsen, who passed away on July 3 at the age of 67. His cardiologist said he died from heart failure, according to KNBC in Los Angeles. Heart disease and alcoholism were named as contributing factors.

Michael Madsen, who was found unresponsive in his Malibu home on July 3, died from heart failure, with heart disease and alcoholism as contributing factors, his rep said.