[mac_truck]

The Autopsy reports mentioned gunshot wounds of "small" and "medium" sizes...

Wrong...the medical examiners provided very specific measurements and anatomical descriptions of the wound sizes and locations...in some cases they also recovered, tagged and described intact and deformed bullets which were described as "small" or "medium" caliber.

[Smokin' Joe]

Small and medium just don't fit the many rifles and handguns I have used over the years. Sorry, but without specific calibers and bullet weights there can be no determination. Ballistic markings (lands and grooves) could match those bullets with individual firearms, provided the bullets are neither too fragmented nor deformed. And provided, of course, that the firearm has been submitted for testing.

The Medical Examiner may measure the wound, but that is not a determinant of caliber of the weapon used to make it. Skin stretches, and rebounds, swells, and suffers from abrasion form the bullet. The angle of impact, whether the bullet has passed through or been deflected by another object, all affect the characteristics of the wound, among other factors. That is not a determinant of who fired what at whom.