In Greek Mythology, who killed Achilles?

In Greek mythology, the person who killed Achilles was Paris. Paris was a Trojan prince who, during the Trojan War, shot an arrow guided by the god Apollo into Achilles' heel, his only vulnerable spot. This fatal shot led to Achilles' death, as his heel was the only part of his body not protected by his invincibility granted by being dipped in the river Styx as a baby. Thus, Paris became the one responsible for ending the life of the great warrior, Achilles.