Statistics – Applications
Scientific paper
2008-03-28
Annals of Applied Statistics 2008, Vol. 2, No. 1, 430-431
Statistics
Applications
Published in at http://dx.doi.org/10.1214/07-AOAS153 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Ins
Scientific paper
10.1214/07-AOAS153
Occasionally during the course of the human learning experience we are faced with an anomaly. An aberration of sorts, which try as we might, defies appropriate classification. The recent paper by Spiegelman et al.--Chemical and forensic analysis of JFK assassination bullet lots: Is a second shooter possible?--is one such aberration. It is riddled with both misconceptions and errors of fact. Purporting to cast doubt on the NAA (neutron activation analysis) work conducted by Dr. Vincent Guinn in the investigation of the assassination of President John F. Kennedy, it fails miserably. The paper offers two central conclusions, one which is demonstrably false, and the other which is specious. The authors opine; ``If the assassination fragments are derived from three or more separate bullets, then a second assassin is likely, as the additional bullet would not be attributable to the main suspect, Mr. Oswald.'' This statement relating to the likelihood of a second assassin based on the premise of three or more separate bullets is demonstrably false. The available evidence indicates that Oswald fired three shots, one of which is believed to have missed. However, on the off chance that all three shots hit (even though there is absolutely no other supporting forensic evidence for such a notion) those three shots alone in no way would indicate then that ``a second assassin is likely.'' The authors' erroneous conclusion was achieved because they have either been misled (which I personally believe is the case) or they simply aren't familiar with the evidence.
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