Everything we know about 24-year-old David Katz, Jacksonville mass shooting's suspect

Jacksonville Sheriff Mike Williams revealed during a press conference that the single suspect in the Jacksonville shooting has been identified as David Katz.

                            Everything we know about 24-year-old David Katz, Jacksonville mass shooting's suspect

The single white male suspect in the Jacksonville mass shooting has been identified as 24-year-old David Katz, the Jacksonville Sheriff Mike Williams said during a press conference. Three people were fatally shot during a video game tournament around 1:30 pm on Sunday, one of whom is the suspected gunman, who reportedly took his own life, Sheriff Williams said. Nine other people suffered gunshot wounds. He said that he is seeking the assistance of the FBI in Baltimore to help identify Katz.  

According to USA Today, Katz had gone to Florida to participate in the Madden NFL 19 competition at the Good Luck Have Fun Game Bar at in the Jacksonville Landing entertainment complex, an outdoor mall. There are video and audio footages from the scene of the crime because the event was being live streamed on Twitch.

The footage that aired on the streaming platform shows two competitors playing the game before what a red laser beam appears to be directed towards one of the competitor's sweatshirts. The stream ends abruptly after gunshots are heard. Katz, who is suspected to have carried out the mass shooting using at least one handgun, is suspected to have gotten upset about losing the game based on social media. He was the 2017 championship winner according to the game’s maker EA Sports. An unconfirmed intel from one of the witnesses also suggests that he was disqualified from the tournament before the shots were fired.  

Sheriff Williams, however, refused to comment on the motive for murder, as the police are still unclear on whether Katz knew any of his victims. He was a well-known figure in the gaming community and reportedly went by the name “Bread.” In a live streaming video from the 2017 tournament, the announcers had claimed that Katz showed no emotions while gaming. "David Katz keeps to himself. He's a man of business," the announcer had said. "He's not here to make friends. You can't even get him to open up about anything, it's like pulling teeth," the announcer added. 
According to Fox News, the witness, who did not want to be identified, revealed, "I know the person was 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 went to get a gun, I don't know if they had it on them. I really can't tell you that." 

"I saw the door bust open and three or four girls kind of, like, fall over themselves to get out of the establishment. At that point, I didn't know what was going on, but I could tell from the look on their face that they weren't joking around or anything like that,” he added, further revealing that even though he did not know where the gunman was, he started running along with the rest of the crowd.