David Oranchak

software developer and cryptography researcher

David Oranchak on KCRW

The Zodiac Killer taunted police, journalists, and the public with menacing letters and four cryptic puzzles.

Virginia software developer helps solve one of the Zodiac Killer’s 50-year-old puzzles

The Zodiac Killer taunted police, journalists, and the public with menacing letters and four cryptic puzzles.

from Press Play with Madeleine Brand

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