A look at the hunt for California's Zodiac Killer, who murdered at least five people in the San Francisco Bay Area in the late 1960s and early '70s.

The identity of the serial killer known as 'The Zodiac' has been confounding investigators for nearly fifty years, but an unlikely and unconventional...

A look at the hunt for California's Zodiac Killer, who murdered at least five people in the San Francisco Bay Area in the late 1960s and early '70s.