[DoodleDawg]

Your “logic” works fine with you sitting in front of your computer AFTER THE FACT...KNOWING that there was no weapon in his back seat. So it’s EASY for you to imagine yourself as a valiant, fearless “unarmed police officer” approaching the guy to reason with him.

Shouldn't police know there was a threat before killing someone?

They had less that a handful of seconds to make a decision and they made the proper one, INHO. These officers have families to go home to after their shift.

And the unarmed suspect's family?

[Boogieman]

“Shouldn’t police know there was a threat before killing someone?”

No, that isn’t the standard for police, or for any one else for that matter.

Even private citizens, who have a more stringent standard than police, are allowed to shoot to kill if they have a reasonable fear that their life may be in danger. So if someone kicks your door in at night, you don’t have to wait to see a gun to shoot him.