What to Know
- Colin Kroll, the co-founder of HQ Trivia and Vine, died of an accidental overdose, the city's medical examiner announced Tuesday
- Autopsy results say he died of "acute intoxication due to the combined effects of fentanyl, fluoroisobutyryl fentanyl, heroin, and cocaine."
- Kroll, 34, was found dead in his SoHo, Manhattan apartment on Dec. 16, 2018.
Colin Kroll, the co-founder of HQ Trivia and Vine, died of an accidental overdose, the city's medical examiner announced Tuesday.
According to the autopsy results, Kroll died of "acute intoxication due to the combined effects of fentanyl, fluoroisobutyryl fentanyl, heroin, and cocaine."
Kroll, 34, was found dead in his SoHo, Manhattan, apartment on Dec. 16, 2018.
Police responded to a 911 call for a welfare check at the Spring Street apartment where they found Kroll unconscious and unresponsive in a bedroom of the apartment, a New York Police Department spokesman previously told NBC News.
Kroll was named the chief executive of HQ Trivia, a phone-based trivia platform, in September. Prior to that, Kroll co-founded Vine, the popular short-form video service acquired in 2012 by Twitter. Vine was discontinued four years later.
"We learned today of the passing of our friend and founder, Colin Kroll, and it's with deep sadness that we say goodby," HQ Trivia said in a tweet following Kroll's death. "Our thoughts go out to his family, friends and loved ones during this incredibly difficult time."
