When a 23-year-old Marine collapses and dies, doctors initially believe a heart attack is to blame. But when arsenic is found in some of his organs, prosecutors charge his wife with murder. A quick-thinking attorney and toxicology testing uncover the truth and ensure that justice prevails.
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Toxic Environment

In the aftermath of violent crimes, unexplainable accidents and other strange occurrences, authorities search for answers in what was left behind. Listen as detectives, scientists and other experts sift through the clues, analyze the evidence and piece together data — all in hopes of finding the truth.

Society & Culture

Personal Journals

History

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Places & Travel

True crime

A young mother is found murdered in her home. From the onset, there are two suspects with ample motive, but an unusual interview and security camera footage has investigators pivot in a horrifying new direction.
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Murder Mark

California police are baffled when an innocent man's DNA is found at the scene of a deadly home invasion. Authorities team with the man's defense attorney to determine how the seemingly impossible could have happened.
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Killer Alibi

When the 20-year-old clerk of an Atlanta-area smoke shop is gunned down during a robbery, investigators have only descriptions of the killers and the make of their getaway car. Investigators used a videotaped confession to smoke out the killers.
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Desperate Stakes

An upscale apparel store in Bethesda, MD was the site of a gruesome scene; a 30-year-old employee was dead and her 28-year-old co-worker was battered and tied up. Surveillance video would shed further light on the motive.
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Men in Black

Eight days after she had disappeared on her way to a family ski trip, an 18-year-old young woman's partially nude body is found floating in a river in Wyoming, Years later, DNA technology uncovers dark secrets that led to her demise.
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Toxic Environment

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