Ed Kemper, also known as the Co-Ed Killer, murdered and dismembered 10 people, including his own mother. Former FBI agent John Douglas takes us through his extensive interviews with Kemper, which became the backbone of modern criminal psychology. Written by Anonymous

Weaving together the gripping tale dating back to 1957, Footsteps in the Snow recounts the chilling story of the coldest case in American history ever to be solved - the murder of Maria Ridulph.