S33 Ep15: The Zodiac: The Case Against Allen

Foul Play: Crime Series

In this episode, we delve deeper into the life of Arthur Leigh Allen, a key suspect in the Zodiac killer investigation. The spotlight intensified on Allen as his troubling behaviors and circumstantial evidence painted a suspicious picture. The search of his trailer in 1972 yielded no direct links to the Zodiac murders, but his arrest for molestation in 1974 cast a darker shadow over his character. Despite passing a polygraph test about the Zodiac, the question of his guilt remained a haunting possibility.

As the years progressed, the scrutiny on Allen didn't wane. The publication of Robert Graysmith's book "Zodiac" in 1986 reignited public interest and speculation about Allen's involvement. Even though Graysmith used a pseudonym for Allen, whispers of his identity spread. Renewed searches and a final interrogation in the early '90s failed to produce conclusive evidence. Allen's death in 1992 left the mystery unresolved, but the debate over his connection to the Zodiac killings endures, highlighting the complexities and enduring intrigue of one of America's most notorious unsolved cases.

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