In the early 1960s, two tragic double murders shocked California—Robert Domingos and Linda Edwards, followed by Johnny and Joyce Swindle. Young couples, vibrant and full of life, were brutally attacked while enjoying serene moments by the water. Both incidents occurred years before anyone had heard of the Zodiac Killer, but the eerie similarities to the Zodiac’s known crimes suggest these could have been his early strikes. In this episode, we explore the horrifying events on Gaviota Beach and Ocean Beach, the cold case investigations, and the emerging evidence that connects these cases to the infamous Zodiac. Could these early unsolved murders reveal a deeper, darker chapter of the Zodiac's history?

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