French Interior Minister Gérald Darmanin and Justice Minister Laurent Nuñez visited Marseille following the assassination of Mehdi Kessaci, which shocked the community and raised drug-related crime fears.Paris prosecutor Laure Beccuau identified Amine O., a DZ Mafia leader in provisional detention, as the primary suspect linked to organized crime, condemning investigation leaks and pursuing multiple leads including Marseille surveillance footage.Mehdi Kessaci's brother Amine announced a white march, expressing anguish and warning against succumbing to fear, while President Emmanuel Macron called for unified anti-drug trafficking measures similar to counter-terrorism strategies.