
The Cold Case Ledger05/26/2026, 08:37:43 PM
This Is the Zodiac Speaking
Northern California, 1968–1969: a masked killer struck four times in fourteen months, then spent years taunting police with encrypted letters and a running body count. This episode reconstructs every confirmed attack, decodes the letter campaign, examines the 2020 breakthrough that finally cracked the Z-340 cipher, and traces the only named suspect through DNA evidence that couldn't close the case. No one has ever been arrested. The Zodiac case remains open.
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