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Forensic Analysis
Dr. John C. Walsh Deputy Medical Examiner Report
Walsh's report called an animal-bite cause of the abrasions highly unlikely, described them as nonspecific and consistent with a rough surface, and noted several possible mechanisms.
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Brennan sought to admit the Walsh report as a competing expert opinion on O'Keefe's arm injuries, but the court excluded it after defense objection. On redirect, Alessi read Walsh's 'non-specific' conclusion to argue it supported diagnostic ambiguity rather than excluding dog bites.
A report by Dr. John C. Walsh, MD, Deputy Medical Examiner at the Armed Forces Forensic Pathology Investigation Division, concluding that O'Keefe's abrasions were 'highly unlikely to be the result of an animal bite attack,' that they were 'non-specific' abrasions consistent with a body moving over a rough surface, and that the injuries could result from various mechanisms.