David Coutcher met a guy in Mexico City in the late 60s. As they got to know each other, this guy opened up to David about his past. And, reflecting back on their friendship David came to a terrifying realization- his 'friend' was confessing to him his horrible life in crime. Because David's friend was the Zodiac Killer. And the murderer of the Black Dahlia. And DB Cooper. And one of the three prisoners who escaped from Alcatraz.

David's written a book about this relationship and all the things he's been able to find in the ensuing years to back up his theory about who his friend claimed to be. The book is called "My Dance with the Zodiac Killer." And David has a YouTube channel where he recounts all the stories his friend Frank told him over the years.

To find David's videos, search "David Gold," on YouTube and you can buy a copy of David's book here.