The death of cartel leader “El Mencho” has sparked violence across Mexico. BBC’s Quentin Sommerville has been investigating how the removal of the head of another cartel has triggered warring factions to battle for control and turned the city of Culiacán in northern Sinaloa state into a war zone. Tap the link in BBCNews’s bio to read his report from a city gripped by deadly cartel violence. #Mexico #ElMencho #Culiacán #BBCNews