An elderly woman is brutally murdered inside her home during a robbery gone wrong, and the only clue is the fact that she had scheduled a chimney cleaning.
Three men wearing masks attack a wealthy couple outside their home, leaving the husband dead and forcing the wife to give them the code to their hidden safe.
Police are hesitant to believe the story of a 12-year-old girl who claims she was kidnapped and sexually assaulted due to her apparent lack of emotion.
A homicide investigation is impeded by a badly burned crime scene, but forensic scientists are still able to find enough clues to apprehend a trio of killers.
Investigators delve once more into the 1994 kidnap-killing of Shannon Melendi, a Emory University coed; she was never seen alive again after a softball game.
Law enforcement officials turn to forensic scientists to solve a murder case involving a man whose testimony fails to match up with the current evidence.
A doctor was the main witness in a murder case after he treats the hand wound of a man who says he cut his hand on the dumpster, when it is really a fight bite.
The body of a female prison guard is discovered in a landfill, and a distinctive element provides a key clue towards uncovering the identity of her killer.
A mother and her daughter fail to return from a day of shopping; the daughter's body is found on the side of the road, but the mother is nowhere to be found.
When detectives investigate a middle-aged man's murder, they determine that robbery may not have been the motive after discovering a mysterious greeting card.
A son finds his father dead in their home and calls 911, but when ballistics clear the only suspect, police have to rely on DNA evidence to find the killer.
Police suspect the pilot husband of a flight attendant in her murder when a witness says he saw them out in the middle of snowstorm except her body is missing.
A quaint English town's innocence is forever lost following the brutal rape and murder of 15-year-old Lynda Mann, and the more recent attack on Dawn Ashworth.
A boy complains of fever and digestive issues a few days before he is scheduled to attend space camp, and it turns out to be the result of a deadly infection.
Law enforcement officials turn to forensic scientists when they are unable to figure out how a stalker could have obtained his victim's home security code.
The last thing anyone except her killer heard her mutter were, "Oh, my God", and Dru Sjodin was never seen alive again; she was taken from a mall parking lot.
A variety of tiny clues adds up to an abundance of evidence regarding the case of a woman who disappeared after working the late shift at a department store.
When authorities discover the charred remains of a woman amongst the rubble of her burned-down house, they must ascertain whether it was arson or an accident.
The remains of a well-to-do California family are discovered in their Fresno mansion, and police wrongfully surmise that they caught a burglar by surprise.
Law enforcement officials embark upon the most intense and thorough manhunts in U.S. history when the chairman of the Coors Brewing Company is kidnapped.
A woman is found strangled and sexually assaulted in her Poplar Bluff, Missouri apartment, and her murder case goes unsolved until 13 years after her death.