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Just a few microscopic cells, from even a single hair or drop of blood, can place a murderer behind bars. What does DNA mean for crime solving today.

When a man's body is dumped in a cemetery, the trail leads detectives to question two very different sisters. How are they linked to this mysterious murder.

When three women die of the same mysterious illness, the hunt is on to prove their deaths were no accident. Can detectives unravel this twisted tale of deceit.

An air force veteran disappears along with his savings. Detectives discover a woman has been draining his accounts, then uncover a conspiracy of greed and murder.

A burning car is found by the side of a highway on the same night a single mother of two is reported missing. The two events lead investigators to a notorious criminal.

When 93-year-old Penny Knell is admitted to a special care facility, a devious mastermind is waiting there to prey upon society's most vulnerable.

In 2015, a hunter comes across a woman in the woods who has been murdered. Detectives unravel a web of dark secrets and lies that lead to a twisted killer.

When human remains are found in a Florida forest, detectives across the US search for answers. With only a tattoo on the victim, how can they solve the mystery.

After the murder of 15-year-old Milli Penn, detectives investigate the masked shooter, rumoured to be another teenager linked to a fight club.

Emily Lambert goes missing after spending the night at a hotel bar. Two days later, she is found murdered. Can investigators track down her killer on CCTV.

When 16-year-old Becky Watts vanished without trace suspicions fell on her step-brother and his partner. Experts analyse police interviews for clues.

When April Barber was murdered at a remote beauty spot, her husband said he tried to stop the killer and even appealed for help on TV. Experts analyse his deception.

When a 21-year-old mother doesn't return from night classes and her car is found burned, foul play is suspected. The web of lies that unfolds is shocking.

When a frail, old woman disappears and another elderly couple are murdered, the FBI investigates. Suspicion falls on a 16-year-old boy who has also gone missing.

Sarah vows to turn Virginia's appointment around when they realise the dress of her dreams has been sold. Meanwhile, Kelly's dress must be taken apart seam by seam.

Syndal is marrying into New York Yankee royalty and friends come with notepads to help rate each dress. Danielle returns for her first dress fitting.

Erin wants a blue dress for her wedding, but she has to convince her sceptical entourage. Plus, Kate is in search of a unique dress that incorporates colour.

Petite bride, Christine is looking for a gown to match her 20's theme wedding. Plus, Valentina returns for her fitting to add a personal touch to her gown.

Engaged partners, Amy and Lex are very much in sync - but not with each other's wedding dress styles. Will Lori and her team find a way to blend both bridal visions.

Jessica wants a gown to satisfy her conservative fiancé but her family has other ideas. Tracy is looking for a deal but her friend is unimpressed with the sale rack.

Whose Side Are You On? Michaella is getting married in an Irish castle and wants a princess dress for her big day. And, fashionista Shavonne has a high-style reputation to maintain.

After suffering life-changing injuries, Emily wants to feel confident enough to walk down the aisle. 62-year-old Wendy aims to prove that age is just a number.

Jo and Al help indecisive bride Dawn pick her dream wedding dress. Plus, Robyn's surprise pregnancy could stop her from finding the dress she wants.

A closer look at real FBI cases - from murders to robberies - with dramatic re-enactments and interviews with agents and forensic scientists who work in the investigations.

A detailed look and investigation into Macheteros, a clandestine Puerto Rican liberation movement accused of numerous acts of brutal terror.

A closer look at real FBI cases - from murders to robberies - with dramatic re-enactments and interviews with agents and forensic scientists who work in the investigations.

£45,000 is donated to help fund lifesaving cancer treatment for 39-year-old Nicole Elkabbas. But a photograph raises suspicions that everything is a lie.

When Paul Stocks is scammed by a bogus travel agent, he soon realised he was part of a huge holiday scam involving hundreds of victims and over a million pounds.

When Sue Hughes falls for Ste, she sends him £100,000 for his cancer treatment. Sue's life falls apart when she discovers that everything is a lie.

Murder On The Bridge. In January 2002, a Yorkshire teenager set off backpacking around Australia. Months later, her body was found at the bottom of the Bundaberg Bridge.

Shot From The Sky. Helicopter pilot Roger Gower helped spot illegal poachers in Tanzania. In 2016, Roger didn't return from one of his routine missions.

The Body In The Tree. Stephen Bennett was vacationing in Goa, India, when he accidentally got involved in a series of events that led to him fearing for his life.

When first responders find severely burned 19-year-old Jessica Chambers on a rural road, they are shocked at the brutality of the crime, with no trace of the killer.

In Florida, two loving parents are brutally gunned down. The police must rely on surveillance cameras to catch the killers and bring them to justice.

When Laci Peterson went missing, her husband claimed he last saw her before he went fishing - but his secret mistress exposed his lies. Experts examine his behaviour.

A man says he survived the Grenfell fire and that his wife and son were among the victims. After he claims £12,500 and appears on TV, police become suspicious.

As a prominent family awakens to noises in the night, their worst nightmare ensues when their beloved daughter, Terri Ann McCoy is fatally shot.

When a missing 11-year-old girl fails to come home and a body is found washed up on a beach, detectives take a closer look at her uncle's story.

Wildlife agents are called out to rescue a black bear that has been hit by a car. Meanwhile, investigators confront the owner of an illegal pig slaughter operation.

The team help a woman whose leg is trapped under the wheel of a lorry. And, a man suffers spinal injuries after falling off his motorbike.

The Yorkshire Air Ambulance team help a 12-year-old who has been knocked unconscious. And, a man needs treatment after falling off a lorry.

Staffordshire police search a property for a suspected burglar, deal with a clubber who is in possession of a dangerous taser and look after a man who has taken a legal high.

The bodycam squad race to catch thieves in a stolen van and are forced to take drastic measures as a night of drinking goes wrong and a fight breaks out in Henley town centre.

The disappearance of Denise Williams' husband leaves her devastated. But, when his mother investigates, she discovers the heart-wrenching truth of his demise.

New in town, Rhonda Smith, finds herself not only with a new job but also a new enemy. After tempers flare Rhonda is discovered barely clinging to life.

A Lost Soul. Lee disappeared one morning after leaving a friend. Had he gone into the wilds, or maybe joined the Israeli army? Follow the hunt for this troubled teen.

When Hope Melton vanishes after being run off a road, CCTV footage from a nearby gas station reveals a suspicious car. Can police find Hope before it's too late.

When a young mother is reported missing, her husband invites a TV crew to clear his name. The experts analyse his statements for signs of deception.

In Colorado, the idyllic life of spouses Harold and Toni Henthorn is shattered by a deadly hiking accident. But their happy home videos conceal a deadly predator.

After moving to a remote Colorado town, Ron and Cynthia Phillips and their kids struggle to adjust. But their home videos mask darker impulses that lead to murder.

Retired preacher and coin collector, Billy Shuler, is reported missing by his wife. But, after five months the case goes cold - will the killer ever be brought to justice.

In 2001, 15-year-old Danielle Jones disappeared on her way to school. Two decades on, her family still fight for justice.

11-year-old Carly disappears while walking home from a friend's house. Detectives uncover disturbing footage of a mysterious man grabbing her.

When police discover a young man's body in a Glasgow bedsit, their investigation reveals he died by arsenic poisoning. Was it murder or suicide.

A young woman is missing in Swansea. Whilst her family search for her, a suitcase containing a badly beaten body is discovered next to the motorway.