Colin Kroll, co-founder of the popular game "HQ Trivia" and the video app "Vine", was found dead in his apartment in New York City on Sunday.
Kroll's girlfriend asked the New York police to check the 34-year-old after she had no contact with the technical supervisor, according to TMZ. Officers found him unconscious and unresponsive on his bed.
According to reports, his body was found in his Manhattan apartment with "drug supplies." The medical examiner's office was working to determine the cause of death.
Kroll has been appointed CEO of HQ in recent years. The game streams live short trivia contests and quickly became popular after it was released in 201
Company employees confirmed Kroll's death on Twitter Sunday and wrote that their "thoughts of his family, friends and loved ones in this incredibly difficult time."
Kroll was also co-founder of Vine, one a now-defunct app that allows users to create, publish, and share videos for six seconds, and his LinkedIn profile also mentions that he has worked on Twitter and Yahoo.
The Associated Press contributed to the report .