https://en.wikipedia.org/wiki/Dorothy_Kilgallen
“On November 8, 1965, Kilgallen was found dead on the third floor of her five-story Manhattan townhouse. Her death was determined to be caused by a fatal combination of alcohol and barbiturates; the initial autopsy ruled out a heart attack.[31] At the time of her death, Kilgallen and Richard Kollmar had been married for 25 years, and they had three children.[32]”
— cause of death: Sounds pretty reasonable to me.
Oh yes, Dick Kollmar who played Boston Blackie on the eponymous radio series. Fans here of The Big Broadcast probably remember him.