Unfortunately, what happened to Amy is what happens to many orangutans in Borneo. When people cut down the forest to build palm oil plantations, orangutan families are displaced from their homes. With no place to go, orangutans will often wander onto the plantations to look for food, and people will shoot and kill the animals. If a mother orangutan has a baby, it's common for people to keep the baby as a pet, or sell them in a wildlife market.
When the rescue team later examined Amy, they found a gun pellet lodged inside her armpit, suggesting that Amy had been wounded when villagers shot and killed her mother.