When Peggy Carr suddenly became violently ill in October 1988, doctors were baffled. She complained of excruciating pain in her feet, began losing weight at an alarming rate, and eventually slipped into a coma. Then other members of her family started showing the same mysterious symptoms.

As panic spread through their small Florida community, investigators discovered the family had been exposed to a rare and highly toxic poison. But how had it gotten into their home? And more importantly, who would want to target an entire family?

What followed was a years-long investigation involving FBI profilers, a brilliant and eccentric suspect, and one of the most unusual undercover operations we've ever covered. This is the story of Peggy Carr, a poisoning that shocked Florida, and the hunt for a killer who believed he'd committed the perfect crime.

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Sources:

The Hunt for the Diabolical Thallium Nitrate Killer | Murder She Solved | Real Crime

Section H13: George Trepal

Trepal v. State :: 1993 :: Florida Supreme Court Decisions

George James Trepal | Murderpedia, the encyclopedia of murderers

Trepal v State 1993

Trepal v State, Trepal v Crosby 2003

Trepal v State: Answer Brief of the Appellee

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