John and David were childhood friends who both went into the building trade. They also shared a mutual interest in the serial raping and killing of lone women on railway stations. How exactly their school boy activities devolved into the sadistic sexual assaults that terrorised Greater London for four years is not known. What is known, is that on this night the pair started their attacks with the violent rape of a 23-year-old woman in Hampstead... Read the full John Francis Duffy Crime File
June 2016 Podcast
Listen to the brand new Crime + Investigation Podcast.