You make an innocent mistake with a gun and kill somebody in America, and both criminally and civilly you will be destroyed, because the very fact you still had the gun in your hand, let alone pointed at a potential threat who was compliant, unarmed with his hands behind his back while sitting on the ground is virtually indefensible, and by every possible standard you should not be able to avoid the absolute maximum penalties... oh... wait a second... this is a cop, not a homeowner... nevermind...
I agree with you. Thus, I sympathize with the accused person and wish the case did not have to go to jury.