Tonight, the victim's sister is speaking out, hoping someone will come forward with information about who killed her brother.
As the family tries find peace, one of AJ's sisters knows there's someone out there who knows what happened to her brother.
"We don't want to have to hold a grudge and we don't want to hold hate for anybody," says Lauren Hoover. "We just want somebody to come forward and just tell us what really happened, and we really just want a sincere apology."
Police have made no arrests in the shooting death of the teen. A Go-Fund-Me account has been set up to raise money for funeral expenses.
Anyone with information is urged to call the Phoenix Police Department or Silent Witness.