As he promised Sugriva, Rama fatally wounded Vali.
Vali's wife Tara wept, and Hanuman consoled her. "Vali's great deeds earned him a place in heaven; don't grieve," he said. "You must help your son Angada honor his father with funeral rites."
Before dying, Vali gave his amulet of invincibility to Sugriva. "It mustn't touch my corpse," he told his brother.
Then Vali died, and all the monkeys bewailed him.
Tara begged Rama to slay her with the arrow that slew Vali, but Rama refused. "God made us as we are," he said. "There's no escaping our destined happiness and sorrow."
Inspired by: Valmiki's Ramayana
Notes: This is from Book 4: Kishkindha Kanda, sarga 21-22-23-24.