Cincinnati Zoo officials shot and killed a 420-pound male gorilla on Saturday after a 4-year-old boy entered its enclosure. The boy had climbed through a barrier and dropped 15 feet into the exhibit’s moat. The gorilla, named Harambe, dragged the boy around the enclosure for about 10 minutes before being shot by the zoo’s dangerous-animal response team. After an outcry on social media, the zoo’s director on Monday defended the decision to shoot Harambe. Critics have suggested there were other ways to save the boy, including using a tranquilizer gun. What do you think?