On the third of October, 2019, Mickael Harpon went to work at police headquarters on the Île de la Cité in Paris and slaughtered four of his work colleagues.

He knifed three men and one woman as they went about their daily business. These are the hard facts. The shock and sadness was felt in Australia, on the other side of the world, so it’s not hard to imagine how news of the attack affected Parisians.