Global National: Dec. 4

The new study highlighting the link between ice hockey and chronic traumatic encephalopathy (CTE), and why critics say the sport isn’t going far enough to protect athletes. The manhunt for a murderer after UnitedHealthcare CEO Brian Thompson was shot dead outside a Manhattan hotel, and the search for a motive. Swift criticism: how Emergency Preparedness Minister Harjit Sajjan is defending his decision to accept taxpayer-funded tickets to a Taylor Swift concert. Plus, meet the Montreal blacksmith who played a key role in restoring the Notre-Dame Cathedral in Paris.