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Forensic experts uncover the stories behind the deaths of the young men who went to war and never came back.

Poisons can be deadly and are often impossible to detect. Forensic experts show how they can solve these mysterious deaths.

When a bank manager was unable to open the bank vault, the FBI was called in, revealing a sophisticated burglary with estimated losses of $8 million.

The bureau investigates the activities of a Croatian terrorist group who gunned down some of their opponents and eliminated others with parcel bombs.

22-year-old Helen McCourt went missing on a stormy night in 1988. Her mother Marie desperately fights to find her.

When Butch Halley finds love with Sunny, he can't wait to start their new life together. But sinister rumours soon threaten to tear the family apart.

Where Is Miya? A college coed disappears, and her family launches a desperate investigation to find her. What they discover will change their lives forever.

When the body of Dawn Meade is found on the side of the road, detectives must determine if it is an accidental death or something more sinister.

Eight-year-old Jamie Lavis was on the bus Darren Vickers was driving before he disappeared. Vickers joined the hunt and spoke on TV - but was hiding an awful truth.

In 1997, 78-year-old Jean Schwarzkopf was murdered in Florida. The retiree's husband owned a jewellery business, was she murdered for her diamonds.

Seven years into their marriage, something changes between a husband and wife - and a dirty secret at work will lead to a deadly confrontation.

A landlord approaches his rental home to inspect a broken window when he hears a baby crying. What he finds inside will haunt two families forever.

In December 2004, 38-year-old Michelle Gunshon went missing. Police believed Michelle had been murdered and that their prime suspect was on the run.

When Maurice Byrd is found shot dead in his home, security footage reveals he had many visitors before his body was discovered. But which one is the killer.

My Father Let The Darkness In. Lisa can't understand why her mum stays with her dad as he is cruel, unpredictable, and violent. When the end comes, it is even worse than she feared.

Sean isn't surprised to hear his brother, Patrick, is arrested again - but he realises that each time he helped him he'd helped a monster living a double life.

Family man Dr David Cornbleet is brutally murdered in his office. Police must rely on CCTV images of man with a concealed face to lead them to the killer.

A chilling look at the work of female killers. They can be as deadly as their male counterparts, but they choose less violent methods.

Poisoners: devious killers relying on their victim's trust in order to steal their lives. Find out why they don't usually stop at just one kill.

Student Dru Sjodin suddenly vanishes after her shift at Victoria's Secret. CCTV footage shows Dru's last movements revealing the chilling reason for her disappearance.

24-year-old former cheerleader Amy Lord goes missing. CCTV footage from ATMs and outside her home captures the moment she was taken by her killer.

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.

Looks at how the type of insects and their stage of development on a dead body can pinpoint the time of death and even identify the victim.

In Beirut armed extremists seize a plane and terrorise everyone on board. The CIA undertakes a daring operation to stop the hijackers; but will they succeed.

In the late 1970s, the FBI had knowledge of anti-Castro terrorists operating in the US. Then, a new group appeared, more violent than their predecessors.

In December 2004, 38-year-old Michelle Gunshon went missing. Police believed Michelle had been murdered and that their prime suspect was on the run.

When Mandy meets Paul online, he quickly moves to Kentucky so they can marry. But love soon turns to hate when his controlling behaviour turns murderous.

A murdered teenager's body mysteriously turns up in the rural Iowa countryside. Will the smallest clue be the key to bringing her killer to justice.

In 2014, a student from China is found murdered in Iowa. CCTV footage points to a planned execution and it opens an international investigation.

Shana Grice was murdered after being stalked by her ex-boyfriend, Michael Lane. He denied involvement, but experts examine police videos to determine the truth.

Michelle Lira dreams of being a doctor, until one day a rollercoaster romance steers her life in a different direction, straight into a deadly ambush.

When's Mom Coming Home? After her divorce Joann Albanese meets a new man. But by the time Joann discovers her boyfriend isn't who he claims to be, it's already too late.

In rural Missouri, the body of a young woman lies dead on a deserted dirt road only days before her wedding. Police uncover surprising secrets in her fiancé's life.

Barrister Robert Rinder examines the case of Rolandas Poskus, a man who was found dead in a park in Hull, and Amanda Playle, a woman who was stalked.

When Dalene Carlson vanishes in the night, CCTV footage reveals several suspects, each with a motive. Can police uncover the truth behind her disappearance.

A single mother vanishes without a trace from her suburban home, and detectives uncover a web of lies spun by those closest to her.

The small town of Craig is shocked when the charred body of Lauri Waterman, a devoted mother, is found. Who could be responsible for this heinous crime.

17-year-old Casey Crowder vanished early one morning when her car ran out of fuel. With no leads, investigators are desperate for any CCTV clues.

Forensic scientists re-evaluate unsolved crimes and apply new methods to solving them.

A thought-provoking look at how drug trafficking has spawned a violent and deadly criminal underground.

After dropping her two boys at school in Coral Springs, Florida, Surya Toha vanishes without a trace. Chilling CCTV footage reveals exactly what happened to her.

19-year-old student Katie Poirier vanishes while working the graveyard shift at a gas station. CCTV footage reveals an answer - but leaves a community in fear.

Forensic sculptors can place a face on an unidentified corpse by recreating a victim's likeness, often leading to a name.

A motel clerk disappears, leaving behind a trail of blood. Investigators have their suspect, but without a victim, what can they charge him with.

In the late '70s, a terrorist group is suspected of setting off bombs in major US cities. Their goal: to bring attention to the Puerto Rican independence movement.

Three armed men attack a man and flee the scene. Authorities are unable to identify the assailants but are convinced it was the work of the Mafia.

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.

Crime writers know as much about crime as any crime-fighter - or criminal. They can provide as near a first-person account of a murder as is possible.

Police rely on a drop of blood to determine a missing person's fate. Plus, when a woman is hit by a train, is a killer covering his tracks.

A man is convicted of the murder of a little girl snatched during a game of hide-and-seek. After a 20-year campaign, could new DNA evidence set him free.

The wife of a beloved Methodist minister from Pennsylvania dies in a freak automobile accident. But was is it really an accident or was there foul play.

A promising young lawyer at Scott Rothstein's law firm is murdered. Investigation into Rothstein reveals a complex Ponzi scheme, duping unwary victims.

When a doctor comes home on Valentine's Day to surprise his wife, he instead finds her dead. But as Aphrodite finds out, nothing in this case is what it seems.

Montana is shocked when mother Susan Casey goes missing after a date. Detectives realize that three men are in her life, any one of whom might be guilty.

A woman in a small town is the target of a terrifying and insidious stalker. When she goes missing, police must prove she was killed- without a body.

A parishioner is shot to death while working in the office of her church in Bucks County, Pennsylvania. Was she killed at random.

The discovery of a murdered schoolgirl leads to an international manhunt, and the dramatic arrest of her father and stepmother on an airport runway.

After a store robbery turns into abduction, Texas Ranger Jim Holland tracks a suspect to a motel and presses for the missing owner's location.

What exposed Tracie Andrews' lie that a road rage attack killed her lover? Mike Gifford-Hull's TV plea for his missing wife Farsi hides the truth.

Three cases illustrating the extreme measures investigators take to catch a killer when a missing person is presumed dead but no body can be found.

Features investigations in which natural clues, including insect bites, cat hair and a rare form of bacteria helped forensic scientists solve murders.

Mum-of-two Nikki Whitehead is brutally murdered in her own home. Police suspect she may have known her killer. Polygraphs and CCTV footage help reveal the horrific truth.

15-year-old Elizabeth Ennen was last seen when a friend dropped her home, but police find a piece of CCTV that turns the case in an unexpected direction.

With only charred remains left of the victim, forensic detectives have to sift carefully through this scanty evidence to solve a perplexing murder.

The occurrence of letter-bombing is becoming increasingly more frequent, but the crime lab is the place where the scientists pursue the bombers.

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.

Experts analyse the former Prime Minister's colourful past and complicated relationship with the truth. Was his career littered with lies.

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.

The dignity of Embassy Row is shattered as a bomb strapped to the undercarriage of a Chevelle kills a former Chilean ambassador to the US and his wife.

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.

When firefighter Bob Poynter is killed, no-one appears more devastated than his young wife, Chacey. But soon detectives discover a web of lies.

Within weeks of their wedding, a debt-ridden wife recruits a team of teenagers to help her get her hands on her husband's life insurance policy.

In Virginia, 2009, student Morgan Harrington vanished. Her body is found, but no culprit is identified until five years later, when another student goes missing.

On a stormy night in Memphis, Micah Rine Pate mysteriously disappears, leaving behind unanswered questions and a husband whose story just doesn't add up.

When Sarah Wellgreen suddenly disappears, detectives desperately search for her. But after discovering no evidence, they investigate closer to home.

When Alice Ruggles is found dead in her flat, detectives uncover a tale of obsession. Police must distinguish truth from lies to solve this case.

Todd Kohlhepp hides a deeply disturbing history of crime. When police find a woman held captive and her boyfriend missing, they unravel the truth.

When Debra marries Randy, his violent and cruel side takes over. Eventually, she manages to escape, but the next woman isn't so lucky.