The boys in blue: This is what we do.

When watching the disturbingly explicit snuff film, the most incredulous sequence to me is how casual and matter-fact does this person -- with a uniform, badge and gun -- behave when he decides to execute Walter Scott by shooting him in the back -- an unarmed suspect fleeing the scene.

His demeanor suggests: "This is what I do...on a regular."

And then this person -- with a uniform, badge and gun -- just calmly saunters over his kill, handcuffs a dead body and runs with all deliberate speed to retrieve an object (stun gun?) which he plants next to the motionless body.