CHICAGO (AP) — A Chicago police officer fatally shot a 24-year-old black man who authorities said pulled a gun while running away, prompting questions from the man’s family about why the encounter turned deadly. Sgt. Rocco Alioto said the “armed confrontation” Wednesday evening on the city’s South Side happened as officers conducted a narcotics investigation. He said the suspect fled on foot when officers approached. Alioto said in a statement that officers told the man to stop and he “produced a weapon,” so the officer shot him.