Walter Smith Cox was a professor of law at what was then called Columbian University, known today as The George Washington University, in Washington, D.C.. On February 26, 1879, Cox was nominated by President Rutherford B. Hayes to a new seat on the United States District Court for the District of Columbia created by 20 Stat. 320. He was confirmed by the United States Senate on March 1, 1879, and received his commission the same day. During his service, he presided over the trial of Charles J. Guiteau, the assassin of President James A. Garfield. Cox retired from the federal bench on July
Charles J. Guiteau convinced that his actions were divinely inspired, and that his destiny was to "preach a new Gospel" like Paul the Apostle. Guiteau then obtained a law license in Chicago; however, he was not successful as a lawyer. He argued only one case in court, the bulk of his business being in bill collecting. His former wife later detailed his dishonest dealings, describing how he would keep disproportionate amounts from his collections and rarely give the money to his clients. He next turned to theology. He published a book on the subject called "The Truth" which was almost entirely plagiarized from