Understanding the Motivations Behind the Parliament Hill Shooting

On October 22, 2014, a man named Michael Zehaf-Bibeau entered Parliament Hill, killing Canadian soldier Nathan Cirillo and catching security off guard.

On the 10th anniversary of what was later deemed a terror attack — and with security risks for politicians only growing — the Globe’s national affairs reporter, Kristy Kirkup, joins The Decibel to revisit the events of that day, sharing stories of responders, and explaining how Parliament Hill changed because of it.

Questions? Comments? Ideas? Email us at thedecibel@globeandmail.com