W5: Protecting innocent children from being killed by their parents

Experts say dangerous warning signs are missed in parents who could harm or kill their child. Up to 40 kids are killed this way each year in Canada. CTV W5 looks into why this is happening, and if there are ways to prevent it.
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W5 is Canada’s most-watched investigative, current affairs and documentary program. Tackling major stories and investigations W5 is in its 51st season.