Can't we just turn Congress off and then turn it back on again?
Conversely, police might have the probable cause they needed to use deadly force to prevent an apparently unarmed suspected felon from escaping, even if they had no reason to believe he had committed murder or manslaughter. Police who see a suspected burglar fleeing the scene, as in Garner, know burglars sometimes commit violent felonies once inside. If they have no way to stop his escape other than to use deadly force, they can hardly be required to let him escape while they first check to see if he has committed a violent felony during the burglary.
"It ain't what they call you, it's what you answer to." - W. C. Fields