Today is Sunday March 22nd, 2020.

On this day in 1971, the San Francisco Chronicle received a strange postcard.

Reporters were quick to connect it to the serial killer who terrorized Northern California

from the mid-1960s through the early 1970s, the Zodiac Killer.

Welcome to today in true Crime, a parcast original.

Due to the graphic nature of today's crimes, listener discretion is advised.

Extreme caution is advised for listeners under 13.

Today we're covering the arrival of a cryptic postcard at the San Francisco Chronicles offices.

Let's go back to California on March 22nd, 1971, of the day's mail.

A few months back on October 27th he'd received a disturbing

Halloween card from the Zodiac Killer. The front of the card read from From your secret pal, I feel it in my bones.

You ache to know my name,

and so I'll clue you in.

Then inside it continued, but why spoil the game?

It also gave an ominous if quirky warning.

Peekaboo, you are doomed.

It was enough to make Paul start carrying a 38 caliber revolver.

Sure he had a taste for hard-hitting stories.

As some of his colleagues noted,

the guy was never happier,

never complete as a human being

until he was on a big, tough, long story.

...