[YouTube]

[Part 2]

[Cipher Solving Document]

HAPPY FRIDAY THE 13TH - Here's a spooky surprise for you:

We're tackling true crime for perhaps the first time ever. At least on this level. And we're doing it with our patented nonlinear conversational flair. This is NOT some air-tight timeline of events, this is our particular opinion of the horrific story. Two siblings just chatting about something bone-chilling. We're talking about David Fincher's 2007 film, Robert Graysmith's seminal book, and more!

In Part 1, we're looking at the earliest letters from San Francisco's Zodiac killer. He taunted the press, the police, and the public with unhinged letters and cryptic ciphers. But he's never had to contend with Guide to the Unknown.

In Part 2, available exclusively on Patreon.com/gttupod, we're talking about the grim legacy of the Zodiac, including looks at some later letters and even some alarmingly modern pieces of mail from people seemingly copying the killer's style.

For full sources and links, visit http://www.gttupod.com/home/f13zodiac

Support GTTU on Patreon! Depending on the tier you choose, you get one, two, our FOUR full bonus episodes per month, a private Discord, and more at patreon.com/gttupod.

Thank you so much!

See everything GTTU-related at gttupod.com.

Watch videos of all of our episodes at youtube.com/gttupod

Follow us online:

https://www.instagram.com/gttupod

https://www.facebook.com/gttupod

https://www.twitter.com/gttupod

Join our private Facebook group at facebook.com/groups/gttupod