A bomb, constructed to cause as much damage as possible, kills a victim with deadly force and flame. When a search yields some tiny clues, police are able to identify the killer.
A six-year-old girl ran and hid when she saw her grandmother being beaten to death, but the man followed, beat and assaulted her. She said the assailant was her uncle, who was convicted.
A woman was shot to death in her Connecticut driveway. Now police must determine if love had turned deadly.
In a tragic twist of fate, just days after the woman sold her home and moved to a modest trailer, a fire took both the trailer and her life. But the autopsy proved this was no accident.
A woman was found dead on the bedroom floor of her apartment. The crime scene yielded little of value and investigators wondered if they would find enough evidence to make a case.
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.
In 1986, Gary Dale Larson was stabbed to death in his Edmond, Oklahoma home and then the killer sexually assaulted Larson's girlfriend Janet Haynes.
The killer probably hoped to cover his tracks by staging the crime scene. But investigators saw through the attempt almost immediately.
When a woman went missing, friends and family were determined to find her. Their worst fears were confirmed weeks later when her body was discovered.
In 2008, college co-ed Jenna Verhaalen was found dead in her Bryan, Texas apartment. Petechial hemorrhages in her eyes indicated that she was strangled.
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.
A killer made great effort to obscure the shoe impressions left when he tracked blood on the floor, but he ended up creating new incriminating evidence...
When a little girl got sick and died, investigators were stumped. Was it an accident, an unexplained illness or murder?
A driver said he couldn't have hit and killed a pedestrian because his Jeep had been sold months ago.
Lives changed in the 20 years following an unsolved murder, and so did forensic science. In time, a high-powered microscope and DNA profiling revealed a clue no one had seen before.
A lifelong resident of the tiny town of Lefroy, Tasmania was murdered outside his own home. Robbery appeared to be the motive, but with no suspects, the investigation came to a halt.
A young woman is stabbed more than 100 times. The killer leaves DNA behind, but investigators must play a cat-and-mouse game to obtain a suspect's DNA to match.
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.
In 1993, young mother Tammy Tatum was sexually assaulted and murdered in her Longmont, Colorado apartment.
A man was killed in a car crash, but the evidence led investigators to believe it was not an accident.