Elon Musk has officially taken over Twitter after completing a $44 billion deal to acquire the social media network. According to Reuters, Musk – the world's richest man - let go of three members of the leadership team including chief executive officer Parag Agrawal, in one of his first decisions as boss of the social media giant on Thursday. In addition, chief financial officer Ned Segal and Vijaya Gadde, head of legal, policy, and trust, were also reportedly let go. Musk responded to the news by tweeting, "the bird is freed," a reference to the social media network's bird logo.