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—known for his work in Quentin Tarantino's Reservoir Dogs, Kill Bill and The Hateful Eight—died from heart failure at age 67, according to his cardiologist.

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.