Huh?
Ability, Opportunity and Intent, the three foundational criteria of a lethal force encounter were met. Shoot to stop. I am certain the Reverend did not have equal-force brick handy, but then again, my Glock kinda looks like a brick too. Countervailing force was the problem solver in that house of worship.
Maybe some would consider an attack by a man armed with a brick to be a lessor threat, but not one willing to be killed or maimed by it....Perhaps too many folks take “Walker, Texas Ranger” TV too seriously.
In this case the glock is a justice dispensing brick.