There are several things that can suggest murder jealousy, anger, poison When everyday substances reveal hidden clues that break a homicide case, those substances become the elements of murder.
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Poison is an almost invisible form of death, and toxicologists must look for hidden clues in blood and tissue to bring these murders to light.
A young girl playing in her yard in Spokane, Washington suddenly vanishes. In St. Louis another girl leaves to visit a friend. She never arrives.
When a murder is committed and deceit clouds the evidence, investigators turn to science and technology to uncover the truth and expose a murderous lie and capture the killer.
When there's a difficult case to crack whether it involves drugs, arson, or weapons the investigators and scientists of the Bureau of Alcohol, Tobacco and Firearms have the means to crack it.
A New York homebuyer gets more than he bargained for when a house inspection turns up a mummified corpse. For decades, the crime had gone undiscovered. The victim unmissed, and the killer unpunished.
Approximately 1.8 million Americans are reported missing each year. Some are runaways who find their way home, but others simply disappear. When foul play is suspected, investigators turn to forensics to find the missing.
When killers are driven by jealousy and desire, their desperation is evident in both the crime and their efforts to avoid detection. But forensic science can reveal even the slightest mistake to solve crimes of passion.
Forensic scientists find clues written in blood as they investigate the deaths of three women killed by the men who once loved them.
The tread of a tire, a single shoe print and even the shape of a bruise help investigators track down killers, based solely on their patterns of guilt.
When killers hide or destroy the remains of their victims, it becomes the mission of forensic scientists to reconstruct the scenes and prove murder for an absent witness.
Some of the best clues come from the least likely places. Baffling crimes have been solved and criminals betrayed through evidence provided by insects, beer bottles, and other seemingly meaningless objects.
At a crime scene, anything left behind or seemingly out of place is considered a clue. But a fire can extinguish everything in its path challenging forensic investigators at every turn and making each arson a trial by fire.
Some cases simply can't be solved with current technology or with the evidence at hand. But that doesn't mean they'll remain unsolved forever.
For serial killers, once is never enough. For investigators, the challenge is steep when the killers murder by numbers.
These cases took a decade or more to solve. There's no statute of limitations on murder. As a case turns cold, the clues become scarce, investigators must rely on science to close cold cases.
A dog can be a dead man's best friend. Dogs have been trained to sniff out corpses, drugs, explosives, and missing persons. They're often the first to find the essential clue that sets an investigation in motion.
Investigators are always on the cutting edge of new forensic techniques that can help them solve cases more accurately. An experimental brain fingerprinting technique has already won the acquittal of a police officer accused of a drug charge.
Accidental deaths, suicides, disappearances, and fires they're an everyday part of an insurance investigator's life. But cases shouldn't be taken at face value. Forensics has become a tool for exposing insurance fraud.
In most homicides, police rely on motive to pursue a murderer. But when the killer is a stranger the crime may go unsolved for years. It takes a full arsenal of forensic techniques to trace a lethal encounter.
For some killers, murder can be a profitable business. And the scene of the crime can be both a source for clues, and puzzling questions. When a victim has been targeted for death, investigators must look beyond the obvious to uncover a murder for hire.
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