Investigators Tim Braun and Danny Baldwin famously recruited nurse Amy Loughren to help them look into serial killer Charles Cullen after hospitals reported multiple suspicious deaths.
"Killer Sally" director Nanette Burstein reexamines Sally McNeil's 1995 killing of her fellow bodybuilder husband Ray McNeil, who allegedly abused the former Marine.
Disgraced music producer Phil Spector was convicted of fatally shooting actress Lana Clarkson inside the foyer of his French Chateau-style mansion in 2003 but what's happened to it since?
In the year 2000, the Miyazawa family was brutally murdered by a killer who then ate their food and played on their family computer before possibly sleeping in their house.
Executive producer Terry Dunn Meurer told Oxygen.com that she hopes viewers can help solve these new cases, including the deaths of "Buffalo Jim" Barrier, Patrick Lee Mullins and Tiffany Valiante.
Despite killing and eating people, serial killer Jeffrey Dahmer was declared sane in the murder trial of 15 men and boys following testimony from multiple experts.
Jeffrey Dahmer kept his victims after he killed them for sexual satisfaction, as the serial explained to his attorneys in Netflix's "Conversations With a Killer."