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

A handwritten letter by a 16-year-old David Katz has been obtained by Inside Edition. In the letter, he wrote a scathing description of his mother. Katz sent a handwritten letter to the judge presiding over his parents’ divorce case. “I hate her more than anything in the world,” he wrote about his mother. “I hate everything about her.” Katz had severe mental issues and was treated at two mental hospitals as a teenager. He also spent months at a wilderness survival camp in Utah for troubled teens.