Conservative candidate Fillon reacts to Champs Elysées attack(2) The killing of a policeman on Paris's Champs Elysees claimed by the Islamic State group rocked France's presidential race Friday with just two days to go before one of the closest races in recent memory. After cancelling his campaign events on Friday, conservative Francois Fillon says that France must combat terror 'with an iron fist'. SOUNDBITE / COMPLETES VID1019619_EN