Actor Kristoff St. John died unexpectedly in February from heart disease combined with the effects of an accidental alcohol overdose, the Los Angeles coroner’s office has revealed, according to KCAL.

Friends of St. John, 52, best known for his role on The Young and the Restless, found his body Feb. 3 at his San Fernando Valley home, according to law enforcement. A source told TMZ at the time that there were no signs of foul play but that alcohol may have been involved.

LOS ANGELES - APR 27: Kristoff St John at the 2016 Daytime EMMY Awards Nominees Reception at the Hollywood Museum on April 27, 2016 in Los Angeles, CA

St. John’s ex-wife, Mia St. John, speculated that his death may have been related to the death of their son Julian in 2014. Julian died by suicide while being treated at a mental health facility. The St. Johns sued the facility for negligence and eventually reached a settlement.

The soap opera star was also hospitalized and placed under psychiatric evaluation in 2017 after sending several photos of himself with a gun to his head to an ex-girlfriend. When police arrived at his home, they confiscated two guns and placed the actor under a 72-hour hold for mental evaluation.