The Man Accused In The Murders Of Two Sullivan County People Has Admitted To The Crimes In Criminal Court. Donald Britt Pleaded Guilty To Two Counts Of First Degree Murder In The Shooting Deaths Of Katie Arnold And Barry Countiss In January. Britt Shot Arnold Though The Window Of Her Home Then Ran To A Neighboring Home Where He Shot And Killed Barry Countiss And Stole His Car. Britt Is Sentenced To Life In Prison Without Parole.