The Zodiac Killer is known to have murdered five people ... first date before David drove them to a secluded area on Lake ...

It’s more than half a century since the Zodiac serial killer terrorized Northern California, murdering at least five people.

Code-breakers have cracked a 340-character cipher 51 years after it was purportedly sent to the San Francisco Chronicle by the so-called Zodiac Killer ... stabbed next to a lake.