The Zodiac Killer: California's Unsolved · 4 Sep 2026 · 12 min

The Hood, the Knife, and the Car Door: Lake Berryessa Decoded

The Lake Berryessa attack was the Zodiac killer's most calculated crime — a costumed assault in broad daylight that left one survivor and a tally of murders written on a car door. Bryan Hartnell lived to describe what no other victim could: the voice, the hood, and the practiced calm of a killer performing for an audience.

The Zodiac Killer: California's Unsolved
Now Playing
The Hood, the Knife, and the Car Door: Lake Berryessa Decoded

Audio is available on Spreaker — see link below.

What's covered

The Shore of Lake Berryessa

September twenty-seventh, nineteen sixty-nine. A Saturday.

Listen now →

What We Know About That Day

The Lake Berryessa attack is the most documented of the Zodiac's confirmed killings. Hartnell survived.

Listen now →

The Phone Call

After leaving Berryessa, the Zodiac drove to a payphone in Napa. He called the police himself.

Listen now →

What Hartnell Gave Investigators

Bryan Hartnell's account remains the closest thing this case has to a direct witness description of the Zodiac in action. He described a white male, heavyset, around five feet ten or eleven inches tall, with brown hair visible beneath the hood at the back.

Listen now →

Where This Fits in the Sequence

We're nine months into the Zodiac's confirmed killing spree by this point. David Faraday and Betty Lou Jensen were shot on Lake Herman Road in December of nineteen sixty-eight.

Listen now →

The Letters That Followed

Three weeks after Berryessa, the Zodiac wrote to the Chronicle again. The letter included a piece of Hartnell's shirt, torn away during the attack.

Listen now →

The Suspects and the Distance

Arthur Leigh Allen has been the most publicly examined suspect in this case for decades. A convicted child molester and Navy veteran, he matches several elements of what investigators assembled.

Listen now →

Why Berryessa Still Matters

In any investigation this old, you hold onto what's concrete. Lake Berryessa gives you more concrete material than almost any other Zodiac event.

Listen now →

What Comes Next

The Berryessa attack happened on September twenty-seventh, nineteen sixty-nine. Less than three weeks later, Paul Stine, a cab driver in San Francisco's Presidio Heights neighborhood, was shot dead at the intersection of Washington and Cherry Streets.

Listen now →

Chapter summary auto-generated from the verified script. Listen to the full episode for the complete content.

More episodes

From The Zodiac Killer: California's Unsolved