BBM
This is the biggest issue I have with this entire story, none of the details disclosed so far indicate that the officer was responding to a DEADLY FORCE. Again, I would hope that an officer who is described as having extensive experience and training, would not consider a college student wielding the officer's own baton, who was then disarmed by the same officer, to be a deadly force. I would hope the officer would be a little more hearty than that.
MOO
Where is the idea of "deadly force" coming from?
In civilians, that is not a standard for self-defense.
You can respond with deadly force to avoid bodily injury, for instance.