Because SWAT, that's why.
Not sure of all the details here, but the VIDEO (bottom of article if you haven't seen it already) is pretty dramatic. (Warning: might be disturbing to some)
I mean, really, a 5 lb dog? A danger? Or just because?
Now most of this could have been avoided by the dogs owner not being stupid, I will admit...But still.
And I want to know where I can buy one of those "Armor Piercing Crossbows"?
Methinks the dog was irritating the SWAT boys as they stacked up for the door rush....and since they had their guns handy,,,,,