Stephen Griffiths - The Crossbow Cannibal

T2, E2: PhD criminology student Stephen Griffiths, self dubbed 'The crossbow cannibal' struck shock and fear into the nation when admitting to killing, dismembering and eating parts of three women between 2009 and 2010. But Professor Wilson believes that this twisted killer, who had been addicted to murder since a very young age, has yet to be convicted of all of his hideous crimes.