>> A different kind of memorial on Monday as animal lovers mobilized outside the Cincinnati Zoo to mourn the death of Harambe the gorilla. Shot dead when he dragged a four-year-old around by the ankle after the boy fell into the gorilla's enclosure. Outrage has mounted since the killing on Saturday, but the zoo's director said the decision to shoot the ape was the right one.
>> Looking back, we would make the same decision. Naturally, we did not take the shooting of Harambe lightly but that child's life was in danger. And people who question that who are our Monday morning quarterbacks or second guessers don't understand that you can't take a risk with a silverback.
>> Animal rights activists calling the death a senseless tragedy as silverback gorillas are an endangered species.>> In the real world you make difficult calls. But you have to make him. The safety of that child is paramount.>> More than 200,000 people have signed online petitions on Change.org to protest the shooting.
Some petitions urged police to hold the child's parents accountable. Last summer similar outrage reached fever pitch over the killing of Cecil the Lion. Who was shot by a dentist on a hunting trip in Zimbabwe.