"Who, what, where, why and when?" are the essential questions at the heart of every homicide investigation for detectives but also for journalists chasing the 360-degree story. Investigative correspondent Chris Hansen knows the routine all too well, having won eight Emmy awards for investigative reporting, outstanding coverage of a news story and outstanding coverage of breaking news. Now, in this show, he brings his unrivaled journalistic skills and criminal insight to an enthralling new series, digging deep into the depths of a killer's mind and bringing life to some of America's most chilling and heart-wrenching homicide cases.