An 18 years old Russian teen committed suicide on Live this weekend, after watching the Joker movie.
And the teen - whose name was Gleb Korabljov - live-streamed his suicide to his fans.
Since Gleb's livestream, the video has now been seen more than 10,000,000 times.
In the full video, Gleb reportedly made reference to the new Blockbuster film The Joker - and the final scene where the Joker was supposed to commit suicide on Live TV.
Then, the 18 year old high school student went into a long rant, and eventually put a gun to his head and pulled the trigger.
Police all across the world have been worried that the violent Joker movie would inspire copycat attacks or violence in theaters.