The alleged killing of a drug cartel leader has led to violence and gunfire in Mexico; hockey fans in Milan discuss feeling heartbroken after both the men’s and women’s team lost the gold medal matches to the U.S.; the son of a volunteer firefighter is working to raise awareness for a rare and aggressive form of cancer; and more. Subscribe to CTV News to watch more videos: https://www.youtube.com/ctvnews Connect with CTV News: For live updates and latest headlines visit: http://www.ctvnews.ca/