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

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

'He was weird all weekend': Madden competitor says he beat suspected Jacksonville shooter in match

Police ID 'Madden 19' tournament shooter as gamer David Katz

How to Eat Healthier | Interview with Dr. David Katz

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