American police have already used a law enforcement robot to kill a suspect, and way back in 2016. The infamous Micah Johnson situation (https://www.theguardia

American police have already used a law enforcement robot to kill a suspect, and way back in 2016. The infamous Micah Johnson situation (https://www.theguardian.com/technology/2016/jul/08/police-bomb-robot-explosive-killed-suspect-dallas https://www.theguardian.com/technology/2016/jul/08/police-bo...). San Francisco police using a robot to kill or the use of deadly force, would not be any kind of new ground or blazing new trails for American police.