CIUDAD JUAREZ, Mexico – Gunmen burst into a bar called "Desesperados" in the Mexican border city of Ciudad Juarez and opened fire on Sunday, killing five people and wounding nine others, authorities said. Assailants also killed the state's prisons director and his son in a second attack in the area, which has turned into a deadly battleground for warring drug cartels. Gunmen opened fire on the vehicle carrying Chihuahua prison director Gerardo Ortiz and his son in Chihuahua city, the state capital, located south of Ciudad Juarez. The state's prisons used to be the site of frequent battles between gangs,...