The identity of the "Zodiac Killer" has confounded investigators for over 50 years, but an unconventional character may have cracked America's most famous cold case by asking whether he ever existed in the first place.
The identity of the "Zodiac Killer" has confounded investigators for over 50 years, but an unconventional character may have cracked America's most famous cold case by asking whether he ever existed in the first place.