I'll take the other side for the sake of discussion. I'd be interested to hear any of our LE Dwebber's opinion(s) on this as my experience is solely overseas based.
I think its easy to judge in these discreet situations because everyone imagines their dog getting killed by the cops and, at least as written, the circumstances and context make the killing difficult to understand. I doubt too many folks are here are using their dogs for indications and warning of a raid against their drug lab and/or as part of a layered defense to permit them time to get rid of evidence, flee, or prepare to resist the incursion with their own weapons either, so we're not reading about those situations that LE deals with all the time too. So while the stuff that is described in those links tugs at heart strings because it (often) was a mistake or an error in judgement we don't see the whole context.
We certainly don't see what the police are going through when they try to serve a someone (though one of the examples actually intimates that)
Or the shit sandwich that is responding to yet another domestic violence call where nobody wins, especially the cop trying to break it up. (also one of the examples, albeit being sent to the wrong addy-not the cop on the street's fault more than likely)
I guess my point is not to be too quick to judge without attempting to understand what they're going through everyday down on the line.
I know my experience is OCONUS, but I have to tell you-killing dogs is why a lot of my kids had suppressors on their M4's; if it's a choice between getting blown as you are preparing for-or executing-a mission or the dog-the dog is going to go. That's especially true when we're using our own Military Working Dogs as part of the team. Different scenario to a degree but there is some crossover in terms of the mentality about protecting the force and such.
Moreover, it's certainly not an epidemic. Influenza is currently an epidemic. Obesity in American is an epidemic. This is just some unfortunate stuff that got posted on the internet.
r-
Ray