Following a deadly shooting at a Toronto festival, many are calling for harsher punishments on illegal guns and tighter security at events; A new Canadian Medical Journal report is raising the alarm about the spread of anaplasmosis, a tick-borne disease that can be fatal; and, Jared Gross, 17, and his friends intentionally ditched their smartphones for flip phones. Kathy Le reports on what scans of their brains revealed to researchers.