Authorities in Los Angeles have confirmed the cause of actor Michael Madsen’s death on July 3 at the age of 67: heart failure. Madsen’s doctor told a local NBC affiliate that heart disease and alcoholism would also be named as contributing factors on his death certificate.

Michael Madsen's sister, Virginia Madsen, shared a moving post about the actor who died on Thursday from cardiac arrest. He was 67. The actress shared a black and white photo of the siblings on Instagram along with a message on behalf of her and their family.

Hollywood is mourning the loss of Michael Madsen after the actor and Quentin Tarantino collaborator died of cardiac arrest.