Doubt [10]

Executive Producers Matt Frederick and Trevor Young sit down for an exclusive behind-the-scenes conversation about the makings of the Monster series. Get the scoop from the beginning and find out how a one-off investigation into a serial killer in Atlanta became an award-winning global podcast franchise.See omnystudio.com/listener for privacy information.

More suspects bring more questions. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

A frightening final theory.   Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

New technology brings fresh hope to the Zodiac case. But what if it's still a dead end?  Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Fascination leads beyond obsession, as a new Zodiac emerges in New York City.  Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

New theories bring new suspects. But for many independent investigators, those theories are truth.  Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Toschi's investigation led to a dead end, but independent investigators are chasing down other leads.  Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

What if the story you've heard about the Zodiac is not the real story? It's time to separate fact from fiction.  Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Investigators finally put a name and face to the Zodiac. The prime suspect is revealed.  Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

A close encounter with the Zodiac sends investigators to Riverside, California.   Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.