The poison is probably antifreeze. My mothers neighbor put it out for our dog in Canada a few years back. It acts very quickly, we couldnt even get the dog to the vet in time, it shuts down their organs. The vet said this is the best poison to kill dogs as it is odorless and tasteless and for some reason they are rather drawn to it. ____________________________________________________
"Diplomacy is the art of saying 'Nice doggie' until you can find a rock - Will Rogers"