 Complete the following phrase:  Dershowitz is known for taking on high-profile and often unpopular causes and clients. As of 2009, he had won 13 of the 15 murder and attempted murder cases he handled as a criminal appellate lawyer. Dershowitz has represented celebrity clients including Mike Tyson, Patty Hearst, Leona Helmsley, Julian Assange, and Jim Bakker. Major legal victories have included two successful appeals that overturned convictions, first for Harry Reems in 1976, followed by Claus von Bülow in 1984 who had been convicted for the attempted murder of his wife, Sunny. In 1995, Dershowitz served as the appellate adviser on the 