No animal should be killed in this fashion, pet or wild. We have wild dogs living in the wadi near us and they're better neighbors than most of the humans---quiet, shy, not aggressive. They keep the rodents and snakes under control and only threaten vermin and gazelle--the latter of which nearly always escape. If my pets were killed in this fashion, I'd want more than an indictment--I'd want the whole Vet department fired and new, qualified and compassionate staff replacing them.
from the article: Two Jerusalem vets could be charged with negligence over dog poisonings