S4 Ep5: Grant Fredericks

This week we hear from the man who holds the information that could . . . and should set George Powell free. Grant Fredericks is a world renowned expert in photogrammetry. He even trains the FBI on the use of photogrammetry. In this week's episode, Mr. Fredericks breaks down his analysis of the other two experts' opinions in George's case, and most importantly shares his own assessment of the video evidence.

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