Jacksonville mass shooting: Here's what we know about suspect David Katz

The suspect in the mass shooting at Jacksonville Landing has now been identified as David Katz. He had opened fire at a gaming tournament in Jacksonville, Florida, and killed two people before shooting himself on Sunday.

According to police, the 24-year-old, from Baltimore, Maryland, was at Madden 19 NFL tournament in The Jacksonville Landing. He was a gamer and took part in the competition but was disqualified.

The suspect seemed upset about the disqualification, according to witnesses. At around 1:30 pm, Katz opened fire killing two people and injuring 11 others. He then turned the gun on himself.

The police say that Katz's motive is still unknown. He used a handgun but authorities are yet to find out if it was his legally licensed gun, according to Business Insider. The police have confirmed that there were no other suspects.

Katz was a gamer who went by the name 'Bread'. He had actively taken part in other gaming tournaments and also went onto win the Madden Bills Championship in 2017. Other gamers at the event said that Katz kept to himself. Win or lose, he did not show a lot of expressions.

One of the witnesses told American HQ, "I saw the door burst 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."

"I didn't know where he was ... but when people started to run, I just literally started to do the same," the witness concluded.

One of the participants, Drini Gjoka, tweeted about the incident saying that he is lucky to be alive.