GJ stands for grand jury. JonBenet sustained an 8.5 inch cranial fissure. On the CBS series, a child actor produced a crack directly underneath where the plug of bone at the base of the skull had been displaced. The boy who did the CBS demo didn't produce the type of cranial trauma described in the autopsy report. Burke hit JonBenet once, when he was 7, with a golf club. The only adult who was present described the incident as an accident.