Police the US state Ohio are going to look the shooting a 17-year-old gorilla Cincinnati Zoo. They will investigate the facts the killing of Harambe the gorilla after a four-year-old boy fell into the ape's enclosure on Saturday. Video footage showed the gorilla dragging the boy shallow water in his cage for to ten minutes. Some people who were at the zoo said they were worried the little boy's safety. Other people said the gorilla was trying to protect the child and that the animal was becoming upset the noise from the crowds of people looking the event. Zookeepers made a decision to shoot the gorilla because they feared the boy's life.
Animal rights groups are very angry that the gorilla was shot and killed. They say zookeepers should have used a tranquilizer gun the animal to put it to sleep. Zookeepers say it would have taken too long the 200kg gorilla to be sedated. They say this would have been too dangerous. There is now an online petition that 300,000 people have signed to hold the boy's mother and the zoo accountable Harambe's death. Many people say the mother should have looked her son better to stop him falling the gorilla's area. The mother said no parent the world can watch their children every second. She said: "As a society, we are quick to judge how a parent could take their eyes their child."