A college senior was found raped and murdered near an unpaved footpath used by students to walk from one side of campus to the other.
Detectives search for the bombers of two churches in Illinois, hoping that the materials used in the remnants of the handmade bombs will offer the clues to catch the culprits.
Responding to a 2008 garage fire, Illinois emergency response discovered a man crushed beneath a truck.
A surgeon is stabbed to death, and the most likely suspect is seen in a restaurant at the time of the murder.
Fifteen years later, DNA technology leads to justice for a murdered woman and her savagely beaten 4-year-old daughter.
A fireman died from what appeared to be heart disease, but his family was skeptical of the cause of death.
An assistant manager of a Florida steakhouse is stabbed to death. It appears to be a robbery gone wrong.
They thought the fire would cover their crime. But one tiny clue led to a trio of killers behind bars.
In 1996, Virginia Beach police arrive at the Makdessi apartment to find Elise Makdessi and her lover dead.
An 82-year-old woman was found dead. Clues on the victim's body would tell police what happened that night.
An aspiring model turned up dead and the prime suspect was her boyfriend. When he was eventually cleared, investigators had to dig deeper to find the perpetrator.
In 1989, the dead bodies of Joan Rogers and her two teenage daughters were found floating in Tampa Bay.
In 1999, Patrick McRae was found dead in his Des Moines home and the crime scene was awash with blood.
After shooting his victims in the head, the killer staged the scene, placed the incriminating evidence into a plastic bag and tossed it into the river.
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.
A driver said he couldn't have hit and killed a pedestrian because his Jeep had been sold months ago.
Security cameras in a casino tracked a young woman's movements until shortly before she disappeared. She was never seen again.
In 1991, Dorothy Donovan was murdered in her Dover, Delaware home and police are skeptical when her son Charles Holden stated that she was murdered by a hitchhiker he had picked up.
In 2006, Texas real estate agent Sarah Anne Walker was found brutally murdered in a model home.
A young woman attends evening church services... then disappears. When her abandoned car is found, the tank is empty and a gas can she kept in her trunk for emergencies is missing.