I suspect beheading ten-year-olds will...
Bingo. Many rumors in the Russian press that this happened at Beslan. I was never able to nail it down for sure, though.
There was, however, the small boy who politely asked for a drink of water and was speared with a sword of some kind for his trouble.
There was also the boy was wearing his cross and only underwear who had a gun aimed at him by a terrorist. The terrorist said to him, "Prepare to die, Christian" and he replied "Christ is Risen" and hopped out the nearest window to safety.