(CULIACAN, Mexico) — Mexican authorities say they backed off an attempt to capture a son of drug trafficker Joaquin “El Chapo” Guzman after cartel gunmen shooting heavy weapons and burning vehicles that paralyzed the capital of Mexico’s Sinaloa state — apparently outgunning lawmen. Twenty-one people were wounded, state public security secretary Cristóbal Castañeda said late Thursday, and 27 inmates escaped a prison. Mexican security secretary Alfonso Durazo said 30 members of the National Guard and army were patrolling in Culiacan when they were fired on from a house Thursday.