"The Insidious Agenda" Chapter 18 - Dear Editor, this is the Zodiac speaking. Trailer

The identity of the Zodiac Killer has remained a deep well of questions, theories and obsession for five decades. But, now, for the first time, a family has come forward to tell their story, reveal their never-before-seen evidence, and present their experience of a man who detectives working the case agree is the only suspect they’ve ever named.
Check out the official trailer for "The Insidious Agenda" Chapter 18 - Dear Editor, this is the Zodiac speaking.
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