Possibly the SDSD could use a little more drill on weapons retention, hand-to-hand and general arrest procedure?
It does appear to be a justified shoot, but the struggle appears to me to be the result of an officer hesitating to use sufficient force soon enough. A DUI and a busted knee would still beat being dead.
...And (trust me on this, I have actual experience) if ever you must deal with police as a suspect, don't run. It rarely ends well for you. Not only will you not get away, human beings are wired up to dump a lot of adrenaline when in pursuit; that means they're all jacked up when they do catch you. Sure, LEOs are trained to deal with this, but they're not robots. Unless it's TEOTWAWKI, smile and make nice.
--Herself