Reexamination of acoustic evidence in the Kennedy assassination. Committee on Ballistic Acoustics, National Research Council

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Science  08 Oct 1982:
Vol. 218, Issue 4568, pp. 127-133
DOI: 10.1126/science.6750789

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Sounds recorded in Dallas at the time of the assassination of John F. Kennedy were analyzed by two research groups, whose reports formed the basis for the opinion that two gunmen fired at President Kennedy. These reports and the acoustic evidence have been studied by the Committee on Ballistic Acoustics, and further acoustic analyses, including sound spectrograms, have been performed. The committee finds that the acoustic data do not support a conclusion that a second gunman was involved in the assassination.