France honours Mehdi Kessaci, victim of Marseille shooting in nationwide silent march

Across France, thousands are expected to march in silence on Saturday to honour a 20-year-old man shot dead last week in the port city of Marseille. He was the brother of a well-known anti-drug crime activist, and his killing is now widely viewed as an act of intimidation. Police continue to search for the perpetrator. Charlotte Lam reports.