Forensic Files

A man died in his home after a long history of heart disease. It was assumed that this was the cause of his death. A few weeks after the funeral, rumors surfaced that the death was no accident.

In 1999, a 12-year-old was found murdered in her home and it changed the feeling of security residents had in the small town of Waseca, Minnesota. Despite a meticulous search of the home and an exhaustive investigation, police had no suspects.

In 1962, the people of the small town of Hanford, California lost their sense of peace when one of their own, 15-year-old Marlene Miller, was murdered.

A mother of two vanishes after a shopping trip. Her body is discovered a month later. Witnesses say they saw the victim being forced into a car by an unknown person.¾

A woman is shot to death in her store just one day before she is to testify against the man accused of robbing her. The robber becomes the prime suspect, but he has a solid alibi: a time-stamped videotape of his activities on the day of the murder.

In 1993, the state of Florida was known for more than just Disney World. Worldwide attention focused on a rash of robberies which targeted tourists. Some vacationers were killed in these attacks, but some fought and survived, despite severe injuries.

At a murder scene, investigators find a shoe-print, several foreign hairs, and unknown fingerprints. But they believe the most telling piece of evidence is the bite mark on the victim's chest.

A woman's death in Pennsylvania triggers a homicide investigation into another woman's death in North Carolina. The similarities in the cases were striking, and examiners must determine if the suspect's story about accidental drowning is all wet.

A 34-year-old nurse experiences a variety of flu-like symptoms. None of her doctors are able to discover the cause, until she visits the gynecologist for a routine check-up. Then she learns it's something far worse than the flu.

Time of death becomes pivotal after a pregnant woman is found murdered in her air-conditioned bedroom. A striking similarity between her death and an HBO movie gives examiners the clues they need to thaw out the alibi of a cold-blooded killer.

Police were puzzled by an obscure print found at a crime scene where one man had been killed and two teenage girls were seriously injured. Neither of the girls could identify their attacker. But one simple clue helped track the footsteps of a killer.

A man is found dead in his home, and his ex-wife has a perfect alibi. To determine time of death, investigators need to know when the victim ate his last meal. An endocrinologist, a forensic botanist, and a short-order cook answer their question.

A union official is executed in his home not long after a strike by the union membership. Neither his wife nor anyone in the neighborhood heard any gunshots. It would take a forensic sound test, an electron microscope, and a nightgown to explain why.

A man tells police he shot an intruder who had attacked and murdered his wife. The husband paints a tragic picture and is dubbed a hero. Four years later, forensic evidence leads police to re-examine the motives of this so-called hero.

A police officer accused of killing his estranged wife insists she committed suicide. Investigators say it was murder¾_ that it was physically impossible for the woman to have shot herself.

When Firefighters found an entire family dead inside their home, it seemed like a murder-suicide. But there were several inconsistent clues in the rubble. Could ballistics, a time card, and some secret audiotapes unravel the mystery?

Two men were murdered while sleeping in their beds. The next night, arson destroyed a family planning clinic. Investigators wonder whether some shards of glass, paint chips and a chicken feather could link what appeared to be two separate crimes.

With no forensic evidence inside a murder scene, investigators were baffled. But they suspected that the victim's dog had witnessed the crime. If she had, forensic scientists would have to find a way to find out what the dog had seen.

A young TV news producer is raped and murdered in her apartment. Police identify two suspects, but both are cleared of any wrongdoing. The case stalls for more than a year, and then investigators turn to the Commonwealth of Virginia's DNA Databank.

Police are dispatched to the scene of a shooting, and discover the victim's husband is one of their own: a homicide detective who says his wife accidentally shot herself in the head.

For years, a woman suffered from what appeared to be the unpleasant side effects of lithium, a drug prescribed to treat bipolar disorder. When she died, investigators had to determine if her death was due to natural causes, suicide, or murder.

A woman is found dead in a ravine, but crucial crime scene evidence had been washed away by severe thunderstorms. Twice, the trail turned cold. Almost 20 years later, an old hat and a chip of stainless steel brought the killer to justice.

When an 11-year-old girl disappeared from a small town in a remote area of Alaska, investigators wondered if she'd been attacked by a bear or become lost in the dense woods. It turned out neither was true.

Just weeks before a witness is to testify against the man accused of sexually assaulting her, she is murdered in the front yard of her own home. Investigators immediately suspect her attacker, but they don't have enough evidence to prove his guilt.

For six years, a serial killer prowled the streets of New York City. He wrote letters to police and The New York Post, indicating he would kill twelve people, one for each astrological sign.

A healthy young man dies mysteriously in his sleep, and toxicology tests reveal a lethal dose of lidocaine in his blood. Investigators find a suicide note, and presume he killed himself until a forensic linguist examines the note.

In the summer of 1986, Kathleen Lipscomb's body was found on a deserted road outside of San Antonio. Months passed, then years, and the crime was never solved. Then Kathleen's family hired a private investigator, who discovered her diary.

A retired police officer is discovered in his bed, dead from a single gunshot wound to the head. His wife first says the motive was robbery. Then she tells police he committed suicide.

Two different men called police to report the same murder. Apparently, neither one knew that the other had called. The investigation uncovered even more unusual circumstances.

The body of a wealthy American businessman was found in his rental car. Teeth and bone fragments were the only remains. When the victim's wife files an insurance claim for $7 million, investigators seek the help of a renowned forensic anthropologist.

When a pipe bomb ripped through a rural home, police had no idea who was responsible. A lot number on a 9-volt battery and the remnants of a mailing label found on a hard drive led investigators to who sent the bomb and why.

No one in a quiet residential community saw anything unusual the day one of their neighbors was brutally attacked and murdered. Fingerprints found at the crime scene and surveillance video helped investigators to apprehend the presumed killer.

Bruce Miller was shot to death in the office of the junkyard business he owned. The crime scene was almost pristine. When a computer forensics expert examined the computers owned by the victim's wife and her lover, he found all the evidence needed.

A drive-by shooting leaves one man dead and another seriously wounded. Cell phone calls and shell casings point to a suspect, but authorities are unable to place him at the crime scene. A forensic geologist proves that dirt is anything but dumb.

When Rosemary Anderson is found dead on the side of the road, her boyfriend becomes the prime suspect. He eventually confessed to her murder, but so did another man _ serial killer, Eric Edgar Cooke.

A high school gym teacher mysteriously left town, without saying goodbye to anyone. He later sent letters to explain why. But a closer forensic look at those letters, and a microscopic piece of tissue, gave investigators an entirely different explanation for where he went and why.

A teen was killed by her parents in what they said was self-defense, but forensic evidence told otherwise.

A mysterious computer crash pushed a thriving manufacturing company to the brink of collapse, jeopardizing hundreds of employees' jobs. Forensic investigators must determine if the crash was the result of a computer defect, human error, or sabotage.

It was supposed to be a routine motorcade for the Queen of England. But on the way to Yosemite National Park, a car carrying three Secret Service agents collided with a car driven by a deputy from the local sheriff's office.

In 1993, the Amtrak Railroad experienced the deadliest train crash in United States history when the Sunset Limited derailed while crossing Alabama's Big Bayou Canot bridge. Forty-seven passengers and crew were killed; scores more were injured.

A fire erupted in Kings Cross Station in London, killing 31 people and injuring dozens more. Investigators pinpointed the cause of the fire, but it took state-of-the-art technology and fluid dynamics experts to explain why it became a deadly inferno.