A new police report released Thursday says two people killed in a shooting over the weekend on the Las Vegas Strip captured it on video while livestreaming to their shared YouTube channel.

The police said the gunman, who turned himself in, and the victims had “previously engaged in conflict over social media.” The shooting was captured on video.

Two people were shot and killed on the Las Vegas Strip near the Bellagio fountains Sunday night. Police say the suspect later turned himself in.