Here is a photo of a jihadi reportedly shot at close range with an M4 (the military version of the AR-15). WARNING VERY GRAPHIC
http://i397.photobucket.com/albums/pp57/IkeMcgowan/sniper_shot2_292.jpg
If her head is intact, and the bullet fragmented and the bulk of it was in the skull as opposed to retaining it's shape and exiting. The ricochet story may have merit.
Thanks...
That fits.
I can’t make a straight shot work without some powder/bullet variant.
And I can’t see this guy having that.