Capitol Murder: A Novel of Suspense (Dana Cutler #3) by Phillip Margolin (2012)

Private investigator Dana Cutler and attorney Brad Miller have overcome more than a few daunting challenges and powerful enemies to see justice done. Against tremendous odds, they successfully unmasked an American president's involvement in a chain of murders. They also saved the life of a Supreme Court justice while foiling a conspiracy by rogue members of the CIA to fix a case headed for the court.Now wicked threats old and new bring them together once again. Convicted serial killer Clarence Little has escaped from death row in Oregon, and Brad receives threatening messages in D.C., where he is working for Senator Jack Carson, a high-ranking member of the Senate Select Committee on Intelligence.A murdered body, exhibiting Little's M.O., is found in Carson's Georgetown home, and the senator has disappeared. At the same time, while Dana is in Oregon digging into Carson's shady background, a terrorist cell is poised to destroy a packed pro-football stadium in what will be the biggest at