evidently she was smart enough to finally shut her trap. easy to see why the officer would want to taser her. just still don't see that it was justified.
I've said it over and over in these threads about the foolish old woman.
She provoked a confrontation with the officer and then ignored his commands and was
attempting to return to a deadly weapon. (i.e. her truck)
At that point, the officer can (1) taze her or (2) manhandle her and put her in cuffs.
To my mind (1) is the best choice.
Unless you think granny deserved a black eye and bloody nose and maybe a broken arm for resisting arrest. I suppose some people are that bloodthirsty.