Otis Story, the former chief executive of Atlanta-based Grady Memorial Hospital, has filed a lawsuit alleging that the hospital board chairwoman orchestrated his firing so she could assume his $600,000 a year job. The lawsuit contends that Pam Stephenson's conduct was "willful, malicious, fraudulent, wanton, oppressive, reckless," and says Stephenson's intent was to take Story down so she could increase her control over Grady hospital and increase her personal income. Story also sued the Grady board and is asking for $1.8 million in severance pay, a $60,000 signing bonus, and punitive damages.