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Photographs
O'Keefe Brain Stem — Duret Hemorrhages Cross-Section (T2 Ex 225)
Cropped brain-stem cross-section admitted as Trial 2 Exhibit 225. Laposata used the Duret hemorrhages to explain herniation as the mechanism of death from the head injury.
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Key pathological evidence in Trial 2 supporting the defense's head-injury theory; the Duret hemorrhages indicated brain stem herniation as the fatal mechanism, central to the dispute over cause and manner of death.
A cross-section photograph of John O'Keefe's brain stem showing Duret hemorrhages, admitted in Trial 2 as a redacted version after the court required cropping. Defense expert Dr. Laposata used it to demonstrate brain stem herniation as the mechanism of death from the head injury.