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, a frequent Quentin Tarantino collaborator on films like "Reservoir Dogs" and a veteran actor in "Free Willy" and more, has died at 67.

Michael Madsen ’s cardiologist has announced that the Reservoir Dogs star died from heart failure. The actor was found dead at his home July 3. He was 67. His doctor told NBC Los Angeles that his official cause of death will be listed as heart failure, with heart disease and alcoholism named as contributing factors.