Are you absolutely positive about this?
With facts to support your statement?
The robot is a commercial robot, not a military robot. If the governing body isn't handicapped it would institute regulations regarding what you can and can not tell a robot to do. The first obvious thing they would disallow is telling your robot to kill you and everyone else.
Also, every one of those people could easily outrun that shambling robot. Being chased like that would be like being chased by a body building midget with polio.