The Los Angeles County coroner has finally revealed the cause of Kristoff St. John's death. The Young and the Restless actor was found dead at his Woodland Hills home on February 3 by a friend who stopped by his house to check on him.
TMZ is reporting that St. John's official cause of death is from hypertrophic heart disease and his passing has been ruled as accidental. The ailment makes it difficult for the heart to pump blood and the the disease is often undiagnosed.
The coroner has listed St. John's death accidental because alcohol played a contributing factor.