10:35 AM PT -- Officials have completed the autopsy on Kristoff St. John, and are now waiting on toxicology to determine an official cause of death.
Soap star Kristoff St. John is dead, and his famous ex-wife believes the facility they held responsible for their son's death is once again to blame.
52-year-old Kristoff St. John died Sunday at his home in the San Fernando Valley. LAPD confirms they pronounced Kristoff dead at his home after responding to a possible alcohol overdose around 2 PM, and have handed the investigation off to the coroner.
In response to the death of her ex-husband, boxer Mia St. John tweeted and deleted a cry against La Casa Mental Health hospital in Long Beach, where their 24-year-old son, Julian, committed suicide in 2014.
"That hospital killed our son then my husband thats what happened!" Mia tweeted early Monday morning, heartbreakingly adding, "They killed my family."
Mia and Kristoff sued the Long Beach hospital in 2015, alleging the facility did not provide enough care for their son, and argued they gave him access to the plastic bag he used to suffocate himself.
It's unclear if Mia is insinuating her husband died from a direct connection to the hospital, or if she's claiming the loss of their son led to her ex-husband's tragic death.
Kristoff, who played Neil Winters on the long-running soap, "Young & the Restless," earned 9 Daytime Emmy Awards and 10 NAACP Image Awards.
At this point, investigators have wrapped up their preliminary investiation into Kristoff's death, and will wait for an autopsy and possible toxicology before an official cause is given.