A trucker disappears - police search extensively only to find what they feared in their own backyard. And two sudden deaths are not as coincidental as they appear. S8/Ep7 [S]
From personality profiles to DNA testing and fibre analysis, look at how the latest technology in forensic science helps criminologists solve a case. S8/Ep8 [S]
Two men are found dead, beaten to death in the bar where they work. A local television station receives an anonymous letter about the murders. S8/Ep9 [S]
In Colorado the mysterious abduction of a young mother ends up as a brutal homicide. With few clues and fewer suspects, the detectives go on the chase. S7/Ep99 [S]
The naked body of a Swedish man is found, a father and son are accused of killing a woman and a police officer impostor disposes of her love rival. S5/Ep5 [S,AD]
A serial killer is preying on male prostitutes and mutilating their bodies; can police catch him before he strikes again? Plus, a divorce case ends in murder. S5/Ep6 [S,AD]
The disappearance of an elderly vagrant leads police to the drug-dependent landlady who has killed seven victims for their social security cheques. S5/Ep8 [S,AD]
Profiles three cases in which investigators used forensic science to track down and convict serial killers. For serial killers, once is never enough. S4/Ep11 [S,AD]
A woman's severed torso is pulled from the Mississippi River; can police identify the victim and catch her killer? Plus, a state trooper makes a grim discovery. S5/Ep9 [S,AD]
A young woman's body is found in the trunk of a car, forensic clues lead to the killer of a 19-year-old boy and a police officer does the unthinkable. S5/Ep10 [S,AD]
Tiny evidence helps bring to justice a murderer who stabbed two young women to death. Plus, the search for the identity of a woman found decapitated. S5/Ep11 [S,AD]
When a killer's dumping ground is discovered in Florida, investigators must confirm the identity of charred bones in order to solve the brutal crime. S7/Ep10 [S]
A security guard finds an employee dead in the driver's seat of his car. Police suspect that someone was illegally hunting and shot the victim. S8/Ep12 [S]
How a simple clue such as dirt on shoes can place a suspect at a crime scene. Meticulous forensic investigators follow the trails of evidence leading to killers. S5/Ep2 [S,AD]
Profiles three cases in which investigators used forensic science to track down and convict serial killers. For serial killers, once is never enough. S4/Ep11 [S,AD]
The disappearance of an elderly vagrant leads police to the drug-dependent landlady who has killed seven victims for their social security cheques. S5/Ep8 [S,AD]
Features investigations in which natural clues, including insect bites, cat hair and a rare form of bacteria helped forensic scientists solve murders. S4/Ep4 [S,AD]
Forensic scientists reconstruct the scene of a bludgeoning murder in Georgia, USA, and find a suspect in the murder of a missing man. Will microfibres hold the key? S7/Ep97 [S]
Explores three murder cases in which investigators secured convictions from trace evidence, including fingerprinting, fibre analysis and DNA testing. S4/Ep3 [S,AD]
Is the rapist and serial killer known as the Hillside Strangler working alone? Plus, a murderer is stalking California's parks; can detectives stop him killing again? S3/Ep6 [S,AD]
In most cases, the killer and victim share a personal history. But when a victim is caught in a stranger's deadly grasp, a crime may go unsolved for years. S7/Ep95 [S]
When a victim is killed at point-blank range, police assume that an acquaintance is to blame. In three cases, the murderer is not always the most obvious suspect. S7/Ep94 [S]
Killers often try to deflect attention from their crimes by hiding the remains of their victims. Visit two cases where bodies lay hidden for years before being found. S7/Ep93 [S]
Most victims of multiple murderers have a link with the killer or match their set of criteria. But some murders occur when victims appear to be picked at random. S7/Ep92 [S]
Everyday substances can reveal hidden clues that break a homicide case. One case is disproved when cyanide is found in a woman's blood stream. S7/Ep91 [S]
Hiding a body can be tricky - it's sometimes easier to obscure the circumstances of death, turning murder into suicide or blaming it on someone else. S3/Ep4
When a young woman is found raped and strangled, the race is on to stop a serial killer. Plus, an ex-cop claims his wife shot herself - is he telling the truth? S8/Ep4 [S]
Sometimes, when a death seems to be accidental, it is up to forensic scientists to reveal hidden betrayals that reclassify cases from accidents to homicides. S7/Ep90 [S]
A victim's estranged spouse is often a key witness in a murder investigation, and when the body is found, family and friends can provide crucial information. S7/Ep89 [S]
When killers sedate their victims and disguise the crime scene, identifying the true cause of death is hard. What hard evidence is needed to help investigators? S7/Ep88 [S]
Police arrest two conspirators in a plot to kill a woman, but in a dark twist, they accuse the victim's ex-husband of hiring them to kill his ex-wife. S7/Ep87 [S]
A look at when there are no eye-witnesses to murder, photographic evidence can provide investigators with a permanent record of the killer. S6/Ep17 [S]
When a young woman is found raped and strangled, the race is on to stop a serial killer. Plus, an ex-cop claims his wife shot herself - is he telling the truth? S8/Ep4 [S]
In the dead of night, a house catches fire but forensic investigators determine the blaze is a smokescreen designed to hide a more horrific crime. S7/Ep10 [S]
When a missing teenager is found murdered, a piece of rope provides the only clue to the killer's identity. And, police struggle to build a murder case without a body. S6/Ep18 [S]
A look at when there are no eye-witnesses to murder, photographic evidence can provide investigators with a permanent record of the killer. S6/Ep17 [S]
A makeshift coffin conceals a body - can insects help cops identify the corpse? Plus, a parasite expert proves murder when a woman is found in a dumpster. S6/Ep15 [S]
A makeshift coffin conceals a body - can insects help cops identify the corpse? Plus, a parasite expert proves murder when a woman is found in a dumpster. S6/Ep15 [S]
Dismembered human remains are found in a grocery bag on a riverbank - will detectives be able to piece together the victim's identity and catch a killer? S6/Ep14 [S]
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? S6/Ep13 [S]
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? S6/Ep12 [S]
Dismembered human remains are found in a grocery bag on a riverbank - will detectives be able to piece together the victim's identity and catch a killer? S6/Ep14 [S]
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? S6/Ep13 [S]
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? S6/Ep12 [S]
When a missing teenager is found murdered, a piece of rope provides the only clue to the killer's identity. And, police struggle to build a murder case without a body. S6/Ep18 [S]
When a makeshift cemetery is uncovered by a road, detectives realise a serial killer is at large. Will they be able to catch him before he murders more women? S6/Ep11 [S]
A man risks everything to find his sister's killer - can a sympathetic detective with a great theory help him? Plus, a sexual predator is getting away with murder. S6/Ep10 [S]
Examining how some killers leave personal marks on their victims. But with the help of hi-tech forensics, police use the marks to capture the killer. S6/Ep8
A man risks everything to find his sister's killer - can a sympathetic detective with a great theory help him? Plus, a sexual predator is getting away with murder. S6/Ep10 [S]
A woman, Betty, identifies a dead body as her missing sister Annie - but Annie is still alive. A look at murderers who kill to acquire a new identity. S6/Ep4 [S]
Discover how scientists can search beneath water for proof of homicide, with cases including a woman found floating in a pond tied to a car jack. S5/Ep12 [S,AD]
Discover how toxicologists look for clues in blood and tissue to bring murders to light, including the case of a wife poisoned by cyanide. S5/Ep7 [S,AD]