Multiple people were killed, including a suspect, after a shooter opened fire during a video-game tournament in Jacksonville, Fla., according to witnesses and police.
The shooter was a gamer who was competing in the tournament and lost, according to Steven "Steveyj" Javaruski, one of the competitors.
The shooter "targeted a few people" and shot at least five victims before killing himself, Javaruski told The Los Angeles Times in a direct message on Twitter. The gunman killed two or three people "that I saw," Javaruski said.
In a public Twitter post, he said he was escorted out by police after the shooting.
"I am literally so lucky," gamer Drini Gjoka said on Twitter. "The bullet hit my thumb."
He added: "Worst day of my life."
Authorities say they are unsure if there is a second shooter, and urged the public to stay away from the area.
The shooting was partially captured on a livestream of the Madden NFL gaming tournament at the Jacksonville Landing. Gaming has become increasingly professionalized in recent years, with gamers taking on public personas similar to professional athletes, and such events are often followed on video and via social media.