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> Scientific Acoustical Evidence Establishes a High Probability That Two Gunmen Fired at President John F. Kennedy [0](https://www.archives.gov/research/jfk/se
by daveevad 5y ago
> Scientific Acoustical Evidence Establishes a High Probability That Two Gunmen Fired at President John F. Kennedy
[0](https://www.archives.gov/research/jfk/select-committee-report/part-1b.html https://www.archives.gov/research/jfk/select-committee-repor...)
- shadowgovt 5y agoThat analysis has since been discredited by an investigation empaneled by the National Academy of Sciences (http://www.nap.edu/catalog/10264.html http://www.nap.edu/catalog/10264.html). The key error in the HSCA investigation was timing; their analysis stemmed from a mistaken belief in both the timestamp of the recording and the position of the motorcycle doing the recording.