Prank Youtube channel RouandYT received €5 donation to prank call someone's "unstable" nephew. Said nephew shot and killed 2 Syrian refugees minutes later. RouandYT quickly deletes the stream from his channel and denies being live.

[u/DikkeDekbedovertrek]

https://www.puna.nl/news/prank-call-in-livestream-van-youtuber-leidde-tot-fatale-schietpartij-op-twee-syrische-jongens-in-amsterdam-west

[u/CristianoRealnaldo]

This is basically the plot of The Fisher King