Mark Towhey is filling in for a vacationing Reshmi Nair. We get an update from Edmonton after the killing of two police officers killed in the line of duty from Dave Breakenridge, managing editor a the Edmonton Journal..Newly appointed 'Special Rapporteur' David Johnston: Good Choice? Bad Choice? Don’t know him/Don’t Don’t care? We take your calls..NASA just launched a satellite made by 150 Ontario students.. Tech expert Carmi Levy explains the ongoing issues with TikTok as the United States and Canada are grappling with national security concerns surrounding the app.