1 season available (4 episodes)

The Fatal Flaw -- A Special Edition of 20/20The Fatal Flaw -- A Special Edition of 20/20

Firsthand accounts from authorities and journalists illuminating four disturbing events as they describe the twists and turns of the investigations and the breakthrough moments that led investigators and police to each killer's doorstep.more

Firsthand accounts from authorities and journalists illuminating ...More

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About this Show

The Fatal Flaw -- A Special Edition of 20/20

Firsthand accounts from authorities and journalists illuminating four disturbing events as they describe the twists and turns of the investigations and the breakthrough moments that led investigators and police to each killer's doorstep.

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