What's behind the growing trend of a person, most often a man, killing their own family?

OTTAWA — Speaking at the National Prayer Breakfast in Ottawa last week, Prime Minister Mark Carney ended his remarks by making a tongue-in-cheek comment to Conservative Leader Pierre Poilievre, who was sitting at the head table with him. “I know there are some stoics in the room,” said Carney, glancing at Poilievre. “So, I will close by channeling Marcus Aurelius,” added the prime minister in reference to the Roman emperor and Stoic philosopher that Poilievre...