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 R. Skinner in Washington D.C. in 1882, and had been asked to attend the execution of Garfield's assassin, Charles Guiteau, but was unable to attend due to the illness of his daughter. He was invited to Czolgosz's execution by the warden of Auburn Prison, and attended as one of only twelve "official" witnesses to the execution as required by New York law. Less than two months after shooting McKinley, Czolgosz was executed on October 29, 1901 in Auburn Prison. Czolgosz was executed in the electric chair, an early usage of this new form of execution. Thomas Edison later re-enacted the execution in