The mother of 6-year-old Aiden Leos is speaking out for the first time since her son was fatally shot in an apparent road rage incident Friday in Orange, California, and calling for justice as the killer remains on the loose.

"They took my son's life away," Adien's mother, Joanna Cloonan, told ABC News' Zohreen Shah in an interview airing Sunday on "Good Morning America." "He was beautiful and he was kind and he was precious, and you killed him for no reason. And I want to find them and I want there to be justice to be served for my son."