They are going to say that a taser is not a deadly weapon -- because the cops say it is "sub-lethal" -- and that therefore the cop should not have been in fear for his life with the taser pointed at him. Which might be true, if the cop knew for sure that the weapon being pointed at him was in fact the taser from his belt, and if the cops are willing to admit that sometimes tasers kill people. He will say that they hadn't had time to check the suspect for weapons because he was fighting with them and they were not strong enough to subdue him (they'll leave that part out), and that it was reasonable to suspect that the weapon pointed at him might well have been a pistol the guy had in his belt. You can see that this will not be as easy as the Minneapolis incident.