American Justice examines the case of a Florida man convicted in 1991 of the poisoning death of a neighbor, with whom he'd been feuding. George Trepal, an amateur chemist, had injected the family's soft drinks with a lethal substance.

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After serving time for several murder attempts, a woman is free on parole.

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In a murder case that makes headlines around the globe, professional football player Aaron Hernandez stands accused of killing his friend Odin Lloyd in cold blood.

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The case of Native American activist Leonard Peltier, who was serving two consecutive life sentences for the 1975 murder of two FBI agents on the Oglala Lakota Indian reservation in Pine Ridge, S.D.

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The story of former Texas oil millionaire, Cullen Davis, who murdered two people and hired a hitman to kill the judge in his divorce trial. However, his wealth won him acquittals in both cases.

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When a hostile online feud turns deadly, detectives’ hunt for a mysterious CIA operative leading to the discovery of a jaw-dropping and vengeful catfishing scheme.

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The story of Kenneth McDuff, the only man in Texas history to be sentenced to death for murder, paroled, arrested and convicted of murder, and re-sent to death row. While it is confirmed he killed 9 people, he may have killed as many as 14.

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On June 3rd, 1986 at a hotel in St. Louis, Edward and Julie Post are in town from New Orleans for a real estate convention. Julie Post drowns in the bathtub of their motel room while Edward goes out for an early morning jog. Investigators initially thought the drowning to be accidental. But as they learn of Edward Post's financial debt and the insurance money that he was going to collect from the death of his wife they take a much closer look, and discover what they believe is a motive for murder.

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When 18-year-old Conrad Roy is found asphyxiated in his pickup truck, his death is quickly ruled a suicide. But as detectives retrace Conrad’s final moments, a trail of texts left behind on his cellphone reveal a toxic teenage romance between him and 17-year-old Michelle Carter, turning the investigation upside down. But in an unprecedented case, in which Michelle stands accused of Conrad’s murder and prosecutors allege that her words were deadly weapons, there is no state law to lean on. Up against 317 pages of damning text messages, the defense must rely on an unusual defense to convince the judge of Michelle’s innocence.

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Barbara Stager is convicted of murdering her second husband after being acquitted for killing her first.

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