America's Greatest Unsolved Mysteries


[I apologize for the default youtube image. It feels inappropriate. If I had an effective way to change it, I would. But, I don't.]

America's Greatest Unsolved Mysteries - The Series

This video (which is set to start at the point of the Zodiac Killer segment) is part of a ten-part documentary series from 2010 which attempted to delve into America's top 60 unsolved mysteries.

From the introduction of the show:

America has been plagued with unspeakable crimes and unexplained phenomena that have captured nationwide attention and intrigue, demanding answers and retribution. However, many of these mysteries never get explained. Mysteries, to this day, that are still thwarting the best efforts of countless law enforcement and investigative teams. Serial killers never identified. Treasures lost. Murderers never caught. And conspiracy upon conspiracy spinning into tangled webs of inconclusive evidence and unresolved truths. This compelling documentary series presents a countdown of America's 60 most notorious unsolved mysteries and crimes in a dramatic compilation revealing these unanswered questions in ten fascinating episodes.

Every time I here the creators of an artistic endeavor describe their creation in flattering terms (e.g. "This compelling documentary...ten fascinating episodes"), I think to myself: "I'll be the judge of that." But, I digress.

The case of the Zodiac Killer comes in at number four. The three mysteries ahead of it are:

  1. Who Murdered JonBenet Ramsey?
  2. Roswell: Are We Alone in the Universe?
  3. The JFK Murder Conspiracy

Overall, coming in fourth on a list of America's all-time unsolved mysteries is a pretty respectable placement. I can understand being outranked by the JonBenet murder mystery. That case (a) is legitimately fascinating, (b) happened at a time when national news coverage of such stories was more prominent than the time of the Zodiac, and (c) was simply more recent.

I have a harder time understanding the ranking of the Rosewell mystery. Perhaps the producers just had a soft spot for UFOs.

The JFK assassination has had an undeniable impact on our society. Yet, in the decades since it happened, the tragedy seems to have become less of a mystery. The evidence which supports the idea of Kennedy being murdered as part of a larger conspiracy has become less and less compelling as time has passed and more people have looked into the question. I'm sure some will disagree, but that's my take.


As with most treatments of the Zodiac Killer, there are a few inaccuracies. A bit surprisingly, some of the dates are wrong. The Lake Herman Road murders were December 20, 1968, not December 28th. The Lake Berryessa attack was September 27th, 1969, not the 29th, and the narrator calls the lake "Napa Valley Lake." They did manage to get the date of Paul Stine's murder correct. Apart from the dates, there are some other things here and there, but nothing too bad.


This is a good segment and you'll probably like it, especially if you're truly interested in the Zodiac (which I'm suspecting you are since you're reading these words). Sure, it's got some inaccuracies and there are no earth-shattering revelations, but it's a reasonably well-done production, consisting of a decent summary and a few different people articulating some commonly-held beliefs.

What do you think of the segment? Leave a comment below.


Michael Cole


  1. zodiac316 14 January, 2016 at 21:52 Reply

    Great video with a clearer shot of Harden’s Page II worksheet. Michael, pause the video at 10:14. Do you see anything wrong with Harden’s worksheet? Does anything stand out ?

    • Michael Cole
      Michael Cole 15 January, 2016 at 08:36

      Okay. I did it. Nothing stands out to me; although I’m pretty sure that you’ve previously mentioned whatever it is that you’re referring to; I just don’t remember it…

    • zodiac316 15 January, 2016 at 18:09

      Ok, I don’t think I mentioned this here. If you look at the 2nd line on the worksheet, there is a break in the line. If Harden drew the lines first on the original worksheet like he said he did before adding the code, why would that break be there? It goes with the worksheet being an original for the construction of the 408 because he knew he would then write about the ghost letter ( i ) error just above that break. Also, I always thought his worksheets were done in pencil since it did say in Graysmith’s book that Harden got out some sharp pencils, a ruler and an eraser and drew his lines before copying and deciphering the code. From the picture in this video, you can clearly see that the worksheet was written with a felt tip pen with how you can see the dark pressure points in the ink flow. It would be hard to erase the ink from a felt tip pen. After seeing this, I compared Harden’s Page II worksheet with clear copy of the actual zodiac code, and the pressure point between both match up with Harden. I even inverted the color, and you can see he has the same pressure points as the writer of the actual code when comparing individual letters and symbols.

  2. Richard Grinell 15 January, 2016 at 04:44 Reply

    A decent introductory video to learn the basics of the case, however it does surprise me how this documentary fails to get the attack dates correct. This should be the prime requisite if you want to be taken seriously from the beginning.

    • Michael Cole
      Michael Cole 15 January, 2016 at 08:43

      Yeah, you are, of course, right. Somewhere along the way, however, my expectations have been so badly diminished that such things don’t bother me much anymore (I admit they should). Especially given that this series is from 2010, they ought to get the dates right. The older summaries of the case (1970’s and 1980’s) are often filled with mistakes. However, since Tom Voigt’s site got popular ( of course) there have been many fewer mistakes in such material. Nowadays, there really is no execuse…

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