The Zodiac Killer has been treated for decades as America's ultimate unsolved true crime mystery: one mysterious killer, taunting letters, cryptic ciphers, a strange costume, and a trail of victims across Northern California.

Eddie McNamara thinks that story is wrong.

The victims were real, the crimes were real, but the single mastermind may have been a media-made myth.

Eddie McNamara is the author of Zodiactually: The Real Story of a Fake Serial Killer, Toss Your Own Salad: The Meatless Cookbook, Brooklyn Hardcore, and Two Fare Zone. He's a former cop, 9/11 first responder, trained chef, and a columnist for Penthouse magazine.