A witness describes the scene of the Jacksonville Landing shooting
Madden tournament gamer describes what he saw after a shot is fired in Jacksonville, Florida event.
The shooter who opened fire during a Madden 19 NFL tournament in a restaurant in Jacksonville, Florida, on Sunday afternoon, killing two people before you get the gun on himself, was described by the witnesses and the people who knew him as a gamer who erupted in anger after the loss of the event.
David Katz, 24, of Baltimore, was believed to have fired shots during the event at the Chicago Pizza restaurant and bar in The Jacksonville Landing, the Sheriff Mike Williams said at a press conference. Williams did not speak about a possible motive.
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Katz died by a self-inflicted gunshot wound after he shot several people, police said. In addition to the two dead, 11 other people were injured, nine of them with gunshot wounds.
The Jacksonville Sheriff’s Office added that there is “cooperation” in Baltimore with the ATF and the FBI as part of the research.
An eyewitness to Sunday afternoon’s mass shooting told Fox News that the gamer, now identified as Katz, had been eliminated from the tournament, before he opened fire.
The witness, who declined to be identified by name, but said that he was 30 years old, said that he did not know the shooter’s identity, but noted there were “several boys who were angry” is removed from the event.
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“I know that the person who is a gamer, for sure. I know that they did lose, for sure,” he said. “I don’t know if they came back, I don’t know if they were going to get a gun, I don’t know if they had it on them. I can’t tell you.”
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The witness told “America’s News HQ” that he had stepped outside the bar where the event takes place when the gunshots rang out.
“I saw the door open bust and three or four girls kind of, like, falling all over themselves to get to the establishment. At that time I didn’t know what was going on, but I could tell from the look on their face that they are not joking or something like that.”
The witness added that when he heard one of his friends repeatedly yell, “I’m hit! Get help.”
“I didn’t know where he was … but when the people started running, I literally started to do the same,” said the man, who added that some friends were killed in the shooting.
The witness added that a friend who was in the bar when the shooting began told him that “many of the boys actually barricaded themselves in a very large bathroom … there was really no way to escape where we were playing. You were pinned.”
Fox News’ Arthel Neville, and Madeleine Rivera contributed to this report.
Nicole Darrah cover breaking and trending news for FoxNews.com. Follow her on Twitter @nicoledarrah.