CTs frequently cite the fact that most witnesses thought the final two shots were simultaneous and that they came from the grassy knoll as evidence of a conspiracy whilst failing to accurately utilise this reliance in their plus 3 shot theories of multiple gunmen. In Josiah Thompson?s study of the eyewitnesses, be quantified four categories of perception:
[Note: ?Sample? refers to number of witnesses who made explicit comments on subject. Those who were completely uncertain were excluded. ]
NUMBER OF SHOTS:
Sample: 172
136 said THREE12 said TWO
10 said TWO
OR THREE
6 said FOUR
5 said THREE
OR FOUR
3 said MORE THAN FOUR
TIME SPAN OF SHOTS:
Sample: 29
20 said FOUR TO SIX SECONDS9 said MORE THAN SIX SECONDS
(1976, p. 28)
SPACING OF SHOTS:
Sample: 65
40 said FINAL TWO BUNCHED13 said EVENLY SPACED
7 said FIRST TWO BUNCHED
5 said FIRST TWO AND FINAL TWO WERE BUNCHED (4 shots)
SOURCE OF SHOTS:
Sample: 64
33 said KNOLL25 said TSBD
4 said TWO DIRECTIONS
2 said EAST SIDE OF HOUSTON STREET (near Records Building)
(Ibid., p. 29)
Taking witnesses totally at their word and by majority, then the scenario we get is somewhat ludicrous: 3 shots from the grassy knoll in about 5 seconds with the last two being bunched?
most CTs don?t take this seriously!
Most CTs believe in over 4 shots and usually 3 gunmen, yet the witness data upon which such speculation relies fails to support this conjecture. Even when considering the location effect among witnesses (location in plaza predicts perception of shot origin: east side = TSBD, West = Knoll), this highlights a classic failure in all conspiratorial cognition.
In the cogntive sciences, a monological belief system is one where a view is self-supported by mutually dependant beliefs. As it happens, the mutal dependance of beliefs in conspiracy theories needn?t have anything to do with the specific
content of beliefs, but rather with the fact that the beliefs all hold that a conspiracy or cover-up took place.
Wood, Douglas, and Sutton in a 2011 paper for the journal
Social Psychological and Personality Science published results showing that the more one believes that Princess Diana faked her death, the more one believed that she was murdered?ditto for Osama Bin Laden. The more one thought he?d been dead before 9/11, the more likely it was that one also excepted that he was still alive. (See here:
http://images.derstandard.at/2012/02/22/dead%20and%20alive.pdf) The commonality among the explanations are that the whole truth is being covered up??they?re not telling us something.? Neuroimaging experiments demonstrate that brain regions active when accepting or rejecting beliefs are those involved in emotion, not cognition. (See Harris, et al. 2008:
http://onlinelibrary.wiley.com/doi/10.1002/ana.21301/abstract;jsessionid=7554F2FD5454ED772C20779A7B941AB6.f01t03)
Another example of this contradiction are the usage of medical experts like Gary Anguilar and Cyril Wecht. Both believe in a conspiracy on the basis of the medical evidence, as they hold that such evidence is authentic. Yet they are routinely cited by those making claims of medical forgery. The acoustics evidence which posits five shots are specific intervals is also cited by those making upwards of 5 shot claims and at any point they wish. The scientific evidence suggests that such content-ignorant usage of evidence has to do with the fact the evidence suggests conspiracy.