When Im charged by a violent crowd of rock and bottle throwers..I most
certainly will not wait to be killed or injured, before employing
deadly force in the defense of myself or others.

What does that have to do with Kent State? Have you been listening to history
revised by Limbaugh?

There were rock and bottle throwing incidents, by individuals, earlier in the
day.
It was almost playful, the Guardsmen picked up some rocks and threw them back.
There were no rocks or bottles being thrown at the Guard at the time the shots
were fired.

The Guard was *not* under attack when some of them opened fire on the crowd.