Watch It Takes a Killer series free. Some of the world's most notorious murders are the subject of "It Takes
a Killer" which investigates the crimes from the perspective of the
killers, trying to get inside their minds and determine their motives.
Leading homicide investigators and experts from such agencies as the FBI
and Scotland Yard take a look at the evidence pulled from crime scenes
and profile the killer's behavior to try to piece together the details
of each murder, explaining when, why and how each criminal committed the
crime. For the wannabe detectives watching the show, the experts also
reveal how the crime was solved -- which often requires authorities to
think like a killer.
