Speaking exclusively with George Stephanopoulos on ABC News’ “Good Morning America” the mother of the boy, who is referred to in court papers as Victim 1, describes how she learned of the abuse and how her son lived in fear of coming forward to implicate a football coaching legend.

“I had said, ‘You know, maybe we should have come to this conclusion earlier — you should have told me,'” the mother, whose name is being withheld, said she told her son. “He was like, ‘Well, I didn’t know what to do … you just can’t tell Jerry no.'”…

In the interview, the boy’s mother discusses how she gradually became aware of the abuse her son was suffering at Sandusky’s hands. Her boy would act out violently to intentionally become grounded and avoid seeing Sandusky, she says, and at one point he came to her saying he wanted to know how to look up information on sex offenders.

“[I] proceeded to ask him if there was something he needed to tell me, if there was something going on … it wasn’t ’til a month later when he indicated he was uncomfortable with leaving the school with him, and [Sandusky] pulling him out of classes at school,” she said.