One of the fatalities is this

Wyman was a wildlife biologist who worked as a caretaker in the Wolf Centre section of the Haliburton Forest & Wildlife Reserve. She was killed by five captive wolves on the third day of her employment.

There's a bunch of captivity based attacks that were not fatalities.

Most of the attacks were solitary joggers, hikers, dog walkers etc that would have been triggering a chase instinct. One of the incidents was ambush on two people:

Noah was awake and talking to his girlfriend when a lone wolf attacked from behind, biting his head. He kicked, screamed, punched, and grabbed, and it ran off. He was taken to the hospital, requiring 17 staples to close a large head wound and to get precautionary injections. Authorities killed the wolf the next day and sent the body for rabies and DNA testing. The wolf tested negative for rabies but was diagnosed with deformities and brain damage.

It's not completely out of the question that a wolf was investigating a nice smell, and after getting the prize left. Definitely fits the pattern of the animals slowly acclimatizing to human activity. That wolf wasn't dangerous then, but it would become dangerous.