This week we stay local.  Episode 11 is about a serial killer who was caught in Chelmsford MA by the parents of a 15 yrs old girl he was trying to abduct from her bed at knife point.  Parental instincts save this young girl and who knows how many others had he not been caught.

Sources: 48 Hrs: Live to Tell; "Caught in the Act"- a book by Jeanie McDunough; Lowell Sun; Murderpedia; Pennlive.com online newspaper.