Perri O'Shaughnessy is the pen name for two sisters, Pamela and Mary O'Shaughnessy, who live in California.  Pamela, a trial lawyer for sixteen years, graduated from Harvard Law School.  Mary is a former writer and editor for multimedia projects.  They are the authors of Obstruction of Justice, Invasion of Privacy, and Motion to Suppress.  They are currently working on the next book in the Nina Reilly series. Less