Police apparently shoot dog for no reason

This story from Alternet really upsets me. I hope the courts get to the bottom of it.

Citing an "Expert Report," Green claims that "video surveillance footage from the Green family residence revealed the absence of any charging, lunging or showing of teeth by the dog Grady and instead showed the dog Grady seeking 'greater distance between the officer and himself,' displaying 'calming [body] signals' by 'looking away from the officers and showing his [Grady's] flank,' and moving in a 'trot.'" (Brackets in complaint.)