AP Explains-What is Twitch

FILE - This Saturday, Nov. 4, 2017, file photo shows the logo of live streaming video platform Twitch at the Paris games week in Paris. The attacker who killed two people in a shooting at a German synagogue live-streamed his assault on Twitch, a video service owned by Amazon. It was one of the first violent attacks streamed on Twitch, which is best known for letting people watch others play competitive video games.