
Elon Musk has added Twitter to his long list of companies, which includes Tesla and SpaceX.
The billionaire's purchase of Twitter was finalized Thursday, a day before a court-ordered deadline, according to a source close to the deal. He immediately fired key executives, including CEO Parag Agrawal, in a clear sign that he wants to overhaul the social media company. Twitter's chief financial officer, top lawyer, and head of public policy were also dismissed.