American Monster

120 Episode s . On any street, behind any smile, lurks an American Monster. Never-before-seen-video footage looks straight into the eyes of a killer, hidden in plain sight. Mom next door; dad across the street; the kid who never broke the rules. Anyone can be a monster.

The Killing Season

8 Episode s . Follow documentarians Joshua Zeman and Rachel Mills as they investigate one of the most bizarre unsolved serial killer cases of our time – the deaths of ten sex workers discovered on Gilgo Beach, Long Island.

The Hunt for the Zodiac Killer

5 Episode s . A look at the hunt for California's Zodiac Killer, who murdered at least five people in the San Francisco Bay Area in the late 1960s and early '70s.

Unmasking a Killer

7 Episode s . Viewers go inside the investigation, the case files and the mind of The Golden State Killer – a man believed to be the most prolific uncaught rapist and serial killer in the nation. With exclusive cooperation from law enforcement and survivors, the docuseries examines the historical and social ramifications of The Golden State Killer’s reign of terror, explore the advances in forensic technology, and highlight the legal changes to our justice system that his crime spree spurred.

Monster in My Family

7 Episode s . A riveting new non-fiction series that delves into the world of infamous serial killers through a unique perspective rarely ever heard, as the family members of the killers come out of the shadows to reach out to the families of the victims. Each episode follows a different family’s journey, facilitated by Melissa Moore – daughter of Keith Hunter Jesperson, infamously known as the “Happy Face Killer” – as they connect with the families of the killer’s victims to express their sorrow and empathy.

Dark Minds

22 Episode s . Dark Minds brings together the sharp criminal minds of author and investigative journalist M. William Phelps and pre-eminent criminal profiler John Kelly to reopen unsolved homicides thought to be the work of serial killers. They are assisted in their efforts by a source known only to viewers as "13," a convict serving multiple life terms for a series of murders, who presents his theories about potential motivations behind these chilling cold cases based on his own experiences. They bring fresh eyes to unsolved serial killer investigations using the combined instincts of three unique perspectives, with hopes that it will encourage viewers to bring forward new leads.

The Capture of the Green River Killer

2 Episode s . Detective David Reichert begins a relentless search for a serial killer in Washington state.

Killer Psychopaths

6 Episode s . Presented by criminologist Professor David Wilson, this series focuses on the cases of seven notorious, cold-blooded psychopathic killers. Professor Wilson walks in their footsteps, living and breathing their movements and speaking to those closest to them as he tries to get inside their twisted minds.

Killers Behind Bars: The Untold Story

7 Episode s . Killers Behind Bars: The Untold Story is a British television documentary series. It is presented by David Wilson and is broadcast on Channel 5.

Evil Up Close