Recent Presentation by Dr. David Mantik on Zapruder Film Alteration

[Michael T. Griffith]

If you think there's no way the Zapruder film could be altered, you should watch this presentation by Dr. David Mantik, given in December 2024.

https://rumble.com/v6zimwo-a-closer-look-at-the-zapruder-film-the-case-for-alteration-david-mantik-md-.html

Here are some noteworthy segments in the presentation:

• Early Viewers Saw Forward Head Movement

[6:20] Both Dan Rather and Deak DeLoach saw JFK's head go forward in copies of the film that weekend, as did Ike Altgens who saw it in real time, but no one has reported forward head movement since 1963.

• Hollywood Experts Identify Fake Black Patch

[8:18] 72 of 75 Hollywood film experts agreed that the black patch on JFK's head was fake, and it closely matches the white patch on lateral X-ray films.

• Sydney Wilkinson's High-Resolution Analysis

[8:52] In 2008, Sydney Wilkinson purchased a third-generation forensic copy and created 6K digital files with 14.7 megabytes per frame, nearly 12 times more information than HD TV.

• Logarithmic vs. Linear Color Space

[9:45] Wilkinson scanned in logarithmic space retaining all available information, unlike home HD TVs which use linear color space with adjusted contrast and color balance.

• Density Analysis of Black Patch

[10:31] NASA scientist scans across JFK's black patch compared to John Connally's head on the same frame show JFK's head is densely black while Connally's appears natural under identical lighting conditions.

• Paul Routan's Professional Assessment

[12:37] Film restoration expert Paul Routan, with credentials dating to the 1950s, identified the black patch as fake, stating it "doesn't look real" and "moves differently than his head does."

• Aerial Optical Printer Technique

[18:18] Routan explains the alteration was accomplished using an aerial optical printer, creating a patch overlay that could be completed overnight using technology available in 1963.

• Color Separation Analysis

[19:25] Before the head shot (frames 308-310), the back of JFK's head shows natural color separation of red, green, and blue components, but after frame 317, it becomes uniformly black without natural color variation.

• Missing Frames and Altered Explosion

[29:10] The existing film shows the head explosion in only one frame with graphic violence, but Brugioni remembered it lasting longer with a white mist, and he definitively states frames are missing from the film.

• Authentic Occipital Wound Evidence

[40:01] Doug Mizzer's analysis shows Hawkeye Works in Rochester forgot to cover up an authentic occipital wound in some frames, revealing the original wound location in the back of the head.

• First Generation Images at Sixth Floor Museum

[40:47] Mantik and Sydney Wilkinson viewed extremely high-resolution first generation images at the Sixth Floor Museum in 2009, seeing a trapezoidal black patch with sharp edges, but later visitors saw different, lower-quality images.

• Film Alteration Process Explained

[42:31] The alteration process involved loading the original film in a projector, bouncing it off a mirror, passing it through a clear cell where alterations could be added, then photographing it with an aerial optical printer.

• Chain of Custody and Technical Issues

[43:28] The film went from 8mm at NPIC Saturday night to 16mm when McMahon and Hunter saw it Sunday night, accomplished through the Bell and Howell Model 414 double-8 system that exposed both sides of the film.

• Zavada Report Contradictions

[47:44] Film analyst Rollie Zavada's report contains internal contradictions about whether copies could be distinguished from originals, and he later reversed his opinion about film splitting, contradicting eyewitness testimony from Kodak officials.

[Tommy Shanks]

Total nonsense from Mantik, as usual. The Zapruder film was confirmed to be authentic once and for all by Roland Zavada in the late 1990s and I've yet to see a reasonable rebuttal to his findings.

[Tom Graves]

Total nonsense from Mantik, as usual. The Zapruder film was confirmed to be authentic once and for all by Roland Zavada in the late 1990s and I've yet to see a reasonable rebuttal to his findings.

"Former" KGB* counterintelligence officer Vladimir Putin totally disagrees.

[Michael T. Griffith]

Total nonsense from Mantik, as usual. The Zapruder film was confirmed to be authentic once and for all by Roland Zavada in the late 1990s and I've yet to see a reasonable rebuttal to his findings.

The video deals with Zavada's "authentication." Did you even watch it? How did you miss this? What about the film experts who appear in the presentation? How do you answer the evidence of alteration that they present? How did you miss the fact that several other experts discuss evidence of alteration in the presentation, not just Dr. Mantik?

You guys display a cult mentality when you summarily reject solid, credible scientific/scholarly evidence as "total nonsense," especially when it comes from serious, qualified experts in the relevant fields.

You guys haven't laid a finger on Dr. Mantik's research. I doubt most of you have even read it. Invariably, you guys rely on Pat Speer's embarrassing, amateurish attacks on Dr. Mantik's research, and you never seem to care that Mantik has destroyed Speer's silly arguments, as have others. Speer has done great research on other issues in the case, but he is pathologically opposed to the very idea of evidence fabrication or alteration, and this mindset has caused him to make embarrassingly ridiculous arguments against Mantik's scientific evidence of alteration of the autopsy skull x-rays.