Michael Madsen's cause of death has been confirmed days after his shock passing at the age of 67. The actor's cardiologist has revealed the Kill Bill star died of heart failure.

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.

Actor Michael Madsen, a stoic actor who worked with Quentin Tarantino among other directors in various acclaimed films from the 1980s onward, has died, according to his publicist Liz Rodriguez. He was 67.