The cause of Michael Madsen’s death has been revealed. His personal cardiologist has shared that the legendary actor died from heart failure. He was 67. His doctor confirmed that heart failure will be listed as his cause of death, with heart disease and alcoholism also being contributing factors, according to NBCLA.

Michael Madsen’s sister Virginia Madsen broke her silence after the longtime collaborator of Quentin Tarantino, who appeared in such films as Kill Bill: Vol. 2 and The Hateful Eight, died on July 3.