There are bad cops out there, we all know that. But whenever I read these kinds of stories my first thought is there is more to the story than we are being told.
I watched a live tv cop show two weeks ago where THREE cops were present, and the man arrested had been drinking...he weighed about 250 lbs, but was mouthy...did not do anything, and they hit him with taser gun, not once but twice because he was mouthy. I don't think that justifies 50,000 volts, twice. Had he resisted arrest, yes...but he did not.
I believe that the police are overreacting to the situations in which they are to be peacemakers. You cannot tell me that three cops needed to use that taser gun, to them it is a toy and they want to play with it...WRONG. It should be as sacred as the gun, you only use it if you need force. It is provided to save lives.
I'm sure there is more to the story, but people in their late 60's are not much of a threat unless they have a weapon. Sometimes the people skills are traded in for something more exciting, like misusing the tools of the trade. I sure would NOT want this policeman to be handling a domestic violence call.