A gunman killed two men and wounded 10 others before fatally shooting himself at a e-sports gaming tournament in Jacksonville, Fla. on Monday. Here’s what we know about the shooting:
» 22-year-old Elijah Clayton of Woodland Hills, California, and 28-year-old Taylor Robertson of Giles, West Virginia were killed in the shooting.
» Authorities have identified the gunman as 24-year-old David Katz, who grew up in Columbia and had a history of psychological and behavioral problems, according to court records.
» Family members said Clayton used the money he earned from gaming tournaments to pay for his college education. “He was one of the kindest people, most genuine guys I've ever met,” a friend and fellow gamer Shay Kivlen said.
» Robertson used his gaming winnings to help support his young family, and fellow gamers described him as a family man dedicated to his wife and children. He had played Madden NFL since he was 10 and started playing competitively a few years ago. Gamer Derek Jones, who lost to Robertson in the 2016 tournament, said his onetime rival was "one of the nicest people I ever met."
» All 10 people who were injured are expected to recover.
» Jacksonville Sheriff Mike Williams said investigators have not determined a motive, but Katz “clearly targeted other gamers.”
» Katz purchased the two handguns he used in the shooting legally from a licensed dealer in the Baltimore area, Williams said. But investigators said there was no indication he planned the shooting before Sunday.
» Katz carried two handguns, including one with a laser sight, but fired only one of them, Williams said.
» A decade before Sunday’s shooting, a psychologist told lawyers that Katz was not likely to harm other people but could target his mother, with whom he lived as a teenager.
» In 2009, Elizabeth Katz called 911 on her son, telling the operator, “He has been abusive for over two years,” according to a transcript. David Katz later called 911 on his mother, claiming that she came at him with a knife.
» About 130 gamers attended the “Madden NFL 19” tournament. The shooting has unnerved the close-knit community of people who play the NFL video game.
» EA CEO Andrew Wilson said he is canceling the remaining “Madden” tournament qualifier events to focus on safety.
Baltimore Sun reporters Tim Prudente, Hallie Miller, Talia Richman and Jessica Anderson and the Associated Press contributed to this article.