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.

Michael Madsen, the 'Reservoir Dogs' actor who worked often with Quentin Tarantino, died at his Malibu home of cardiac arrest, a representative says. He was 67.

Michael Madsen apparently went into cardiac arrest and was found unresponsive in his home in Malibu, California, on Thursday morning, according to his manager.