Two people in Seattle, Washington died after taking an over-the-counter pain reliever. Lab analysis of the pills showed they were tainted with a lethal concentration of cyanide.
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When a decomposed body is found stuffed in a barrel, it's easy to presume murder. One of the few clues was an address book found along with the body.
When Joann Katrinak is found dead in a corn field with her son, the obvious suspect is her husband. But insects found on the bodies reveal a vital clue which uncovers a twisted story.
When the wife of a well-known dentist is found dead, police struggle to identify a suspect. Some fibers and a study of the weather patterns on the night of the murder break the case open.
Women in a Louisiana city live in fear of a rapist who leaves no clues to his identity. But technology and behavioral science combine to give police a new forensic tool.
While at a real estate conference in St. Louis, a man finds his wife drowned in the bathtub in their hotel room.
After more than 20 people on a Native American reservation die suddenly from a flu-like disease, Navajo medicine men provide a clue that leads to a most unlikely killer.
A woman who survived a deadly childhood fire sends police a letter charging that her father killed her mother 30 years ago.
A beverage company pleads guilty to violating federal safety laws when a baby dies from E. coli after drinking apple juice.
Janice Johnson was found dead at the foot of her stairs. Police in Nova Scotia had to answer the question: Was it an accident or murder?
Police exhume the body of Karla Brown, murdered in her home in 1978, to study bite wounds, which eventually lead to the killer.
Who was the sexual offender who murdered two boys in Nebraska? The key to stopping him would be the unique composition of the "junk rope" he used to tie his victims.
When a Pennsylvania man checks into a hospital for leg pain and later dies of thallium poisoning, police investigate his wife and find her in the process of collecting an insurance payment for her previous husband's death.
Sometime during a neighborhood Christmas party, five-year-old Melissa Brannen disappeared. Investigators turned to forensic science to help them see what the witnesses missed.
A serial bomber was waging a vendetta against the legal profession. A judge, two attorneys and even a courthouse had been targeted. Employing a range of forensic techniques, investigators used evidence from the bombs to lead them to the perpetrator.
In 1987, a human skull and some bones were discovered at a boy scout camp near Farmington, Missouri. A facial reconstruction aided the investigators in this case.
In the mid-1980s, bodies of nude women were found on a remote hill of California. The police got a break when a known prostitute escaped an attacker and was able to identify him and his automobile.
Eleven-month-old Chad Shelton was admitted to the hospital with unexplained bleeding and later died. Investigators and scientists frantically searched for a cause when others from the same house fell ill.
Heavy rains and snow run-off carried manure into Milwaukee's water supply in 1993, leading to an epidemic of gastrointestinal illness affecting 400,000 people.
After a day of fishing in a small, quiet village in Switzerland, a teenage boy did not return home as planned. The investigation revealed some important microscopic evidence in the water near where he was last seen.
On October 15, 1985, two bomb explosions rocked Salt Lake City and resulted in two deaths. A third explosion occurred the next day. This time, the victim was injured but survived.
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