What person did the Greeks leave behind to tell the story to the Trojans?

The Greeks left behind the character Sinon to tell the story to the Trojans. Sinon deceived the Trojans into believing that the Greek forces had abandoned their siege and left the wooden horse as an offering to the gods, claiming it would bring them favor. His cunning Words convinced the Trojans to bring the horse into their city, ultimately leading to their downfall.