Criminologist David Wilson reviews notorious serial killers from films and television including 'Zodiac,' 'Dexter,' 'The Silence of the Lambs, 'Se7en,' 'Psycho,' 'Ma,' 'American Psycho,' 'No Country For Old Men,' 'Riverdale,' 'Copycat' and 'Mindhunter.'

"In the Footsteps of Killers” starring David Wilson and Emilia Fox is now streaming on BritBox. For more information visit http://BritBox.com