No recorded man killed by wolves in Canada that I know of. These wolves must be under pressure from human activity to be so agressive. You are right about them killing and leaving domestic animals, which happens occasionally. They have super smell and can detect very small traces of toxins in organs and flesh and if it is present they will walk away. Have you ever heard about the dog trained to sniff out cancer in humans. I have seen this dog in action and he finds cancer tumors on humans easily. The wolves sense of smell is superior to even this dog. This is a theory floating around about this. The old native people talk about this. They rarely leave animals in the wild and if they do they will return in afew days when they are hungry again unless a man approaches and leaves his sent there.
