In February 2003, Thompson asked permission to file an "amicus curiae" (or "friend of the court") brief in the Ohio case of Dustin Lynch, 16, who was charged with aggravated murder in the death of JoLynn Mishne; Lynch was "obsessed" with "Grand Theft Auto III". When Judge John Lohn ruled that Lynch would be tried as an adult, Thompson passed a message from Mishne's father to the judge, asserting that "the attorneys had better tell the jury about the violent video game that trained this kid showed him how to kill our daughter, JoLynn. If they don't, I will."