Whistle-blower Sean Hellein will receive nearly $21 million for triggering a successful federal inquiry into Medicare and Medicaid fraud at his former Tampa employer, WellCare Health Plans. Hellein in late February withdrew his objections to a pending $137.5 million civil settlement with WellCare. But the size of his payout was unclear until Tuesday, when U.S. Attorney Robert O'Neill announced the settlement of all four lawsuits initiated by whistle-blowers. Three of the suits were in the U.S. Middle District of Florida in Tampa, the fourth in the District of Connecticut.