This episode appears to be based on two separate cases of child killings in which the crimes were committed by children themselves (both cases from England):
- The 1993 murder of James Bulger by Robert Thompson and Jon Venables. James was a three years old when he was abducted and murdered by two ten year old boys in Liverpool, Merseyside, England. The horrific and shocking crime made international headlines at the time.
- The 1968 Mary Bell case, in which 11-year old Bell strangled two toddler boys to death, whom she was babysitting in North East England.
Larry Gregory has played six different roles over the course of the series:
- Episode 4.6 Pride and Joy (1993) - Novogrod (as Larry S. Gregory).
- Episode 6.19 Blood Libel (1996) - First Uniform Policeman (as Larry S. Gregory).
- Episode 9.19 Tabula Rasa (1999) - Court Officer (as Larry S. Gregory).
- Episode 10.2 Killerz (1999) - Stevens (as Larry S. Gregory).
- Episode 12.15 Access Nation (2002) - Uniform Cop #2 (as Larry S. Gregory)
- Episode 14.12 Payback (2004) - Guard.