Justin was born two years after Cassiopeia was taken. His Mom, Maria was still young and already an eight year old, Carlos who was already learning to shoot a gun. So she made the better choice and give him up so he could go to a better home. That was her mistake, Justin was instead taken by th same people who had taken Cassiopeia. He showed no sign of his virus til he was of talking age when he saved Cassiopeia from a Cerberus. He could see the future. That's how his friendship with Cassiopeia began.