Tears of a Clown - Gordon Wardell: After Gordon Wardell makes an emotional appeal to find his wife's killers, police soon realise they must look closer to home. (S4, ep 2) [S,AD]
51 Days of Fear - Howell Donaldson III: The Tampa area of Seminole Heights is gripped by terror after shootings claim the lives of four innocent victims. (S4, ep 1) [S,AD]
Masud - Unrequited Love: After ending her relationship, 15-year-old Maleha Masud pays the ultimate price when her ex-boyfriend starts a lethal blaze at her home. (S3, ep 5) [S,AD]
Mann - Deadly Deceit: The chilling story of Wendy Mann, whose life was taken in a jealous frenzy by her ex-partner and the father of her three children in 2015. [S,AD]
Malone - The Killer with No Conscience: The story of Garry Malone, who brutally bludgeoned his wife to death before making a bogus TV appeal for her to come home. [S,AD]
Aulakh - Assassin's Accomplice: Shock pours through a community when a devoted mother is fatally attacked with a machete on her way to pick up her children. [S,AD]
The Suitcase Murderer: Detectives reflect on how they gathered evidence to charge Melanie McGuire with murder when her husband's remains were found in suitcases. [S]
Til Death Do Us Part: Police painstakingly trawl through hours of CCTV footage, location data and forensic evidence to find the brutal killer of a heavily pregnant woman. [S]
Bathtub of Bleach: After finding her dead in a bathtub full of bleach, detectives narrowed down Susan Eyre's killer from 210,000 possible suspects. [S]
Teenage Runaway: After going missing for a year and a half, many believed 14-year-old Chyenne had run away from home. However, closer analysis revealed the tragic truth. [S]
Caught on CCTV: How police used CCTV, eyewitness statements and a public appeal to find the killer of a 28-year old woman, found dead on Nottingham's streets. [S]
Traces of DNA: In 1986, Detective David Baker became the first person to use DNA profiling in a criminal investigation, when looking for the killer of two young girls. [S]
Delgado - Poisonous Possession: Documentary lifting the lid on police investigations into some of the most incredible murder cases in criminal history. (S3, ep 9) [S,AD]
Swope - Deadly Greed: Documentary lifting the lid on police investigations into some of the most incredible murder cases in criminal history. (S3, ep 9) [S,AD]
Marriott - Amnesia, Meth and Murder: Documentary lifting the lid on police investigations into some of the most incredible murder cases in criminal history. (S3, ep 8) [S,AD]
Carlson - The Stranger in The Night: Documentary lifting the lid on police investigations into some of the most incredible murder cases in criminal history. (S3, ep 7) [S,AD]
Sievers - A Murder for Hire: Documentary lifting the lid on police investigations into some of the most incredible murder cases in criminal history. (S3, ep 6) [S,AD]
Delayed Justice: The Grand Rapids Murderer: Two women are killed in the 70s and their cases go cold for over 30 years, until a chilling link between the two emerges. [S]
New & Exclusive. A Picture Perfect Family: The FBI investigates when a seemingly perfect husband flees the United States following the murder of his wife and three children. [S]
The Principle Suspect: A seemingly ordinary family man is the prime suspect when his wife, three young children and mother-in-law are brutally killed after church. [S]
The Canal Murders: It took 18 years to identify Melissa Halstead after her torso was found in a Rotterdam canal. But detectives never stopped working to catch her killer. [S]
Body in the Ditch: A computer at Vogue magazine held the key to identifying Julie Clayton, an ex-cult member who'd been assaulted and murdered upon leaving. [S]
Fire and Ice: An unlikely informant holds the key to justice when 59-year-old antique dealer Michael Griffiths is targeted and brutally killed in his home. [S]
Til Death Do Us Part: Police painstakingly trawl through hours of CCTV footage, location data and forensic evidence to find the brutal killer of a heavily pregnant woman. [S]
Drive By Shooting: With no CCTV and no witnesses, detective Jon Buehler must find the person responsible for a drive-by shooting of "gentle giant" Sula Palega. [S]
Bat Girl: US detectives investigate the brutal murder of Phillip Inhofer at his home in Sacremento, with a lead to a 20-year-old call girl known as "Bat-Girl." [S]
Caught on CCTV: How police used CCTV, eyewitness statements and a public appeal to find the killer of a 28-year old woman, found dead on Nottingham's streets. [S]
The Camden Ripper: In 2002, police made a startling discovery inside a locked room in Anthony Hardy's home. This was merely a horrifying prelude for what was to come. [S]
Traces of DNA: In 1986, Detective David Baker became the first person to use DNA profiling in a criminal investigation, when looking for the killer of two young girls. [S]
Bathtub of Bleach: After finding her dead in a bathtub full of bleach, detectives narrowed down Susan Eyre's killer from 210,000 possible suspects. [S]
Teenage Runaway: After going missing for a year and a half, many believed 14-year-old Chyenne had run away from home. However, closer analysis revealed the tragic truth. [S]
Delgado - Poisonous Possession: Documentary lifting the lid on police investigations into some of the most incredible murder cases in criminal history. (S3, ep 9) [S,AD]
Swope - Deadly Greed: Documentary lifting the lid on police investigations into some of the most incredible murder cases in criminal history. (S3, ep 9) [S,AD]
Marriott - Amnesia, Meth and Murder: Documentary lifting the lid on police investigations into some of the most incredible murder cases in criminal history. (S3, ep 8) [S,AD]
Carlson - The Stranger in The Night: Documentary lifting the lid on police investigations into some of the most incredible murder cases in criminal history. (S3, ep 7) [S,AD]
Sievers - A Murder for Hire: Documentary lifting the lid on police investigations into some of the most incredible murder cases in criminal history. (S3, ep 6) [S,AD]
Mann - Deadly Deceit: The chilling story of Wendy Mann, whose life was taken in a jealous frenzy by her ex-partner and the father of her three children in 2015. [S,AD]