In 1991, Grand Junction, Colorado is on edge after a series of deadly bombings kill two people and injure one more. Police race to find the culprit before he strikes again.
They thought the fire would cover their crime. But one tiny clue led to a trio of killers behind bars.
When a car was found in a drainage ditch with two bodies inside, a fingertip torn from a latex glove would point investigators to both the crime scene and the killer.
In 1996, Virginia Beach police arrive at the Makdessi apartment to find Elise Makdessi and her lover dead.
Fifteen years later, DNA technology leads to justice for a murdered woman and her savagely beaten 4-year-old daughter.
When court clerk Peter Porco doesn't report to his work in November 2004, a courts officer is ordered to the Porcos' family home in Bethlehem, NY.
When a little girl got sick and died, investigators were stumped. Was it an accident, an unexplained illness or murder?
A millionaire and his family were executed in their own home. For three years, the murders went unsolved. Finally, a box of ammunition and some fluorescent fibers revealed the ultimate betrayal.
The brutal murder of a state park employee over $2,000 rattles her co-workers and tourists while leaving police to sift through hundreds of leads.
A girl claimed she had been abducted. She recounted what happened but things didn't add up to police.
In 2000, the body of exotic dancer Rachel Siani was found beneath a New Jersey bridge. Investigators wondered if she had committed suicide.
An investigation into the murder of a World War II veteran slowed to a halt when the prime suspect had a solid alibi. But a lucky break led to a shady character who wore distinctive boots.
When a college co-ed vanished without a trace, her fellow students were concerned about her safety and their own.
The prime suspect had a criminal record and his driver's license was found at the scene of a brutal double homicide.
A security guard disappeared from his post without a trace his remains were found a year later in a remote camp site.
In 2006, Nevada politician Kathy Augustine died mysteriously during a hard-fought re-election campaign and the medical examiner could neither isolate the cause of death.
When a man's story of a killing contradicted physical evidence, investigators turned to forensic science.
A woman appears to have lost control of her SUV and plunged down an embankment into a shallow creek. But investigators suspect foul play when they find snowy footprints leading from the crime scene.
When a wealthy socialite died after falling down the stairs, witness accounts contradicted evidence. Investigators employed a physicist and an expert in accident reconstruction.
The crime scene was especially violent: A couple had been shot to death. Was their teenage daughter complicit?