I encountered a jett using a third-party client that disables streamer mode. He proceeded to stream snipe my friend whom I was playing with. Below I provide all the evidence needed to show that he is 100% without a doubt stream sniping. I am sure the riot staff will use this information to take the appropriate actions against the jett as he has clearly violated the terms of service, which he agreed to by playing the game. The viper also goes on to encourage this behavior which surely violates the terms of service as well.
https://clips.twitch.tv/HonestNastyScallionBudStar-BLdzAx56-jIH2SWb
https://cdn.discordapp.com/attachments/812214969864683531/1092176609248825444/image.png
https://cdn.discordapp.com/attachments/812214969864683531/1092177179351203842/image.png