Three internet sleuths say they've cracked the Zodiac Killer's 340 Cipher, which was sent to the San Francisco Chronicle in 1969.

An era known as the ‘golden age’ of serial killers, started to decline in the 2000s. But there could be a surge once again, at least according to Peter Vronsky, a Toronto-based historian and author.

Is Ted Cruz the Zodiac Killer? It's pretty safe to say the answer is "no" but Floridians don't seem to sure.