Skull fracture



When JonBenet was found, nobody noticed any injury to her head. However, during the autopsy, it was revealed that she had a skull fracture.

Description from the Autopsy
II. Craniocerebral injuries

A. Scalp contusion

B. Linear, comminuted fracture of right side of skull

C. Linear pattern of contusions of right cerebral hemisphere

D. subarachnoid and subdural hemorrhage

E. Small contusions, tips of temporal lobes

[...]

No scalp trauma is identified.

[...]

Skull and Brain: Upon reflection of the scalp there is found to be an extensive area of scalp hemorrhage along the right temporoparietal area extending from the orbital ridge, posteriorly all the way to the occipital area. This encompasses an area measuring approximately 7 x 4 inches. This grossly appears to be fresh hemorrhage with no evidence of organization. At the superior extension of this area of hemorrhage is a linear to comminuted skull fracture which extends from the right occipital to posteroparietal area forward to the right frontal area across the parietal portion of the skull. the posteroparietal area of this fracture is a roughly rectangular shaped displaced fragment of skull measuring one and three-quarters by one-half inch. The hemorrhage and the fracture extend posteriorly just past the midline of the occipital area of the skull. This fracture measures approximately 8.5 inches in length. On removal of the skull cap there is found to be a thin film of subdural hemorrhage measuring approximately 7-8 cc over the surface of the right cerebral hemisphere and extending to the base of the cerebral hemisphere. The 1450 gm brain has a normal overall architecture. Mild narrowing of the sulci and flattening of the gyri are seen. No inflammation is identified. There is a thin film of subarachnoid hemorrhage overlying the entire right cerebral hemisphere. On the right cerebral hemisphere underlying the previously mentioned linear skull fracture is an extensive linear area of purple contusion extending from the right frontal area, posteriorly along the lateral aspect of the parietal region and into the occipital area. This area of contusion measures 8 inches in length with a width of up to 1.75 inches. At the tip of the right temporal lobe is a one-quarter by one quarter inch similar appearing purple contusion. Only very minimal contusion is present at the tip of the left temporal lobe. This area of contusion measures only one-half inch in maximum dimension. The cerebral vasculature contains no evidence of atherosclerosis. Multiple coronal sections of the cerebral hemispheres, brain stem and cerebullum disclose no additional abnormalities. The areas of previously described contusion are characterized by purple linear streak-like discolorations of the gray matter perpendicular to the surface of the cerebral cortex. These extend approximately 6 mm into the cerebral cortex. Examination of the base of the brain discloses no additional fractures.

Dr Rorke's Analysis
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Surface-strike Theory
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The Flashlight
Experiments These experiments were later re-enacted in the CBS documentary.

The Golf Club
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The Baseball Bat
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Level of Force Required
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Sequencing of the Injuries
See Sequencing of the Injuries.