Every season of It Takes a Killer ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of It Takes a Killer!

The Craigslist Killer

Chandra Levy

Jodi Arias

A Treacherous Triangle

Phil Spector

Deaths In The Family

Bind, Torture, Kill

The Ghost Of Baton Rouge

Stephanie Lazarus

The Casanova Killer

A Woman Scorned

The Fast Food Killer

Murder for Millions

Author of Death

A Son Snaps

Homicide In The High Desert

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.

The Best Seasons of It Takes a Killer

The Best Seasons of It Takes a Killer

Season 1