Chilling footage has emerged of the Florida pro-gaming tournament shooter bragging about being one of the 'better players' at last year's event.
David Katz, 24, from Baltimore, carried out an attack on Sunday August 26, killing two people and injuring more before taking his own life.
Advert
In the video, from February 2017, Katz told a reporter: "I don't think of myself as a seventh seed. I think, personally, I'm one of the better players - and I like to let my game prove that."
Katz had just defeated the number two seed 41-7 in the Bills Madden Club Round in Buffalo, New York.
He added: "I understand the game really well. My opponent probably should've called his timeouts... I took advantage that he didn't."
Advert
During the Buffalo Bills Madden Club tournament he won $10,000 (£7,788), according to the New York Post, but lost in the quarter-finals in California.
When asked if he was nervous during the game in Buffalo, he responded: "Honestly, I felt like I had the ball most of the game. I wasn't really doing too much on defence."
It's been reported Katz had been defeated by two opponents in the two-day tournament.
One gamer has even come out with claims he defeated Katz, who had been described as a 'well-known competitor', the day before the shooting took place.
Advert
He said: "He had shades on, he didn't speak to anybody. Even after we played... I went to shake his hand and just tell him good game and he just looked at me. He didn't say anything."
One witness told WJAX-TV that Katz snapped after losing an intense game and started shooting.
During the tournament Katz had been introduced by announcers as someone who 'keeps to himself'.
According to the New York Post, one said: "You are not going to see much emotion. He's not here to make friends."
Advert
The suicidal shooter left families devastated as he murdered two men, one a rising star in his community, another a married man with a young son.
Members of the Madden gaming community, and local press Miami Herald and ActionNewsJax, have named them as Taylor 'SpotMePlzzz' Robertson, 27, of Ballard, West Virginia and Eli 'Trueboy' Clayton, 22, of Woodland Hills, California.
Tributes to the two men have been streaming in on social media.
A livestream of the tournament caught the horrifying moment that a laser landed on Eli's chest before shots rang out - the camera cut off before.
The shooting took place at 1:34pm (EDT), in Jacksonville, Florida.
Advert
During the event, the Jacksonville Sheriff's Office took to Twitter to warn people to stay away from the Jacksonville Landing and urged people: 'please don't come running out'. The Landing is a shopping, dining and entertainment complex within the city centre, where the tournament was being held.
Nine of the non-fatal injuries were gunshot wounds and two were sustained while fleeing the chaos, Jacksonville Sheriff Mike Williams said.
Featured Image Credit: EA SportsTopics: World News, News, Florida, US News, USA