It's just after eleven on a December night in 1969. Stella Medeiros is driving home along Lake Herman Road when she sees a car pulled over on the shoulder. She slows down. She thinks someone has broken down. She pulls closer — and finds two teenagers on the ground.

That is where this story actually begins. Not with a legend. Not with a cipher. With people on a dark road and a crime no one had a name for yet.

In Episode 1 of Season 1: The Zodiac File, JR — The Algorithmic Detective — goes back to the documented record to tell the story the way it actually happened: victim-first, fact-first, and free of fifty years of accumulated mythology. We cover all five confirmed murders, the two survivors who gave investigators their most valuable eyewitness accounts, and the chilling moment a killer picked up a phone — not to flee, but to announce himself.

We also begin to ask the question that will drive this entire season: what happens when a 1960s cold case meets 2026 intelligence?

Episode 2 drops next week. The cipher war begins.

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It's just after eleven on a December night in 1969. Stella Medeiros is driving home along Lake Herman Road when she sees a car pulled over on the shoulder. She slows down. She thinks someone has broken down. She pulls closer — and finds two teenagers on the ground.

That is where this story actually begins. Not with a legend. Not with a cipher. With people on a dark road and a crime no one had a name for yet.

In Episode 1 of Season One: The Zodiac File, JR — The Algorithmic Detective — goes back to the documented record to tell the story the way it actually happened: victim-first, fact-first, and free of fifty years of accumulated mythology. We cover all five confirmed murders, the two survivors who gave investigators their most valuable eyewitness accounts, and the chilling moment a killer picked up a phone — not to flee, but to announce himself.

We also begin to ask the question that will drive this entire season: what happens when a 1960s cold case meets 2026 intelligence?

Episode 2 drops Saturday. The cipher war begins.

Send us Fan Mail

Support the show

For our very first case, Alibis and Algorithms opens one of the most haunting files in American history: the Zodiac Killer. In this teaser, The Algorithmic Detective lays out what this show is—and what it refuses to be.

Across a focused, single‑case season, we’ll rebuild the Zodiac investigation from the ground up: the crime scenes, the letters, the ciphers, and the failures that may have cost detectives their chance to catch him. Then we’ll bring in the one thing the original investigators never had: modern cryptanalysis and AI.

You’ll hear how computers helped crack one of Zodiac’s infamous ciphers, how language models weigh in on whether the letters came from a single hand, and what a data‑driven cold case team could realistically do with the evidence that remains.

Here’s the rhythm of each case:

• Saturdays: full 45–60 minute investigation episodes.
• Mondays – Field Notes: deeper dives into side trails and experiments.
• Wednesdays – Case Files: timelines, maps, ciphers, and data at alibisandalgorithms.com.

No stunt “solves.” No doxxing. Just investigating truth in the age of algorithms.

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