And then I turned around and actually saw the flashes from the gun. "Initially we thought it was a balloon popping, but there weren't any balloons in the room, " said Williams, who had taken part in the tournament earlier.
"Shortly there after, businesses in landing went on lockdown as other patrol units worked to evacuate the area", explained Jacksonville Sheriff Mike Williams.
- George Amadeo II, 17, is in good condition. He died of a self-inflicted gunshot wound.
A gamer, known as "DUBBY" on Twitter, said that a bullet "grazed my head".
UF Health said four patients were discharged, but two others remain hospitalized.
Florida's Governor, Rick Scott, visited several of the injured on Sunday night, including "OLarry2k" Timothy Anselimo, who is expected to recover after being shot in the hand and chest. CNN reports that White House press secretary Sarah Huckabee Sanders told the press on Sunday that the president had been briefed on the incident. "That was a awful thing indeed".
The divorce papers in Howard County, Maryland, say Katz started obsessively playing video games as a boy, sometimes refusing to go to school or to bathe.
- In an interview with former Buffalo Bills player Steve Tasker, Katz talked about his skill. That means Katz would have submitted his fingerprints, undergone a background check, and passed a firearms safety training course to buy those guns.
Elizabeth Katz said her youngest son had increasing difficulty concentrating following his parents' split.
The records show Katz's parents disagreed deeply on how to care for their troubled son.
He was once placed on an antipsychotic medicine used to treat schizophrenia. Katz's mother took him to see a number of psychiatrists as well as a social worker and art therapist, according to a 2006 letter from the father's attorney. "David seems well aware of reality at all times". He was the father of a two year old boy. "David Katz keeps to himself".
The family of a West Virginia man killed in the shooting at video game tournament in Florida says he was a dedicated family man with "big dreams". We will update this story when we hear back. He also assured players they would strive for security at all events going forward. "We've got to figure this out".
The massacre was the latest in a series of high-profile shootings in the state, following the killing of 17 students and educators at a high school in February and of 49 people at an Orlando nightclub in 2016.
Three people, including Katz, were left dead while at least 11 others were shot and wounded in the shooting, which took place at the Chicago Pizza in the Jacksonville Landing shopping plaza.