Who really laced Tylenol with cyanide? This true-crime series examines alarming theories behind the unsolved killings — and tracks down a key suspect.
Seasons
Trailer
Official Trailer · Opens on YouTube
Who really laced Tylenol with cyanide? This true-crime series examines alarming theories behind the unsolved killings — and tracks down a key suspect.
Official Trailer · Opens on YouTube
2018
Streaming data by JustWatch.
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