See Jacksonville Gunman David Katz After He Won Gaming Tournament Last Year

David Katz: The Video Game CHAMPION Who Became a KILLER

Video Game Gunman David Katz Detailed Hatred for Mother in Handwritten Letter

David Katz: What we know about the suspected Jacksonville shooter as police begin investigation

Jacksonville shooting: Gunshots heard on live stream at Madden online gaming tournament

The Pro Gamer Who Became a Murderer... | The Case of David Katz

The surprising solution to ocean plastic | David Katz