The Lynda Block case involves the 1993 murder of Opelika, Alabama, police officer Roger Dean by Lynda Lyon Block and her partner, George Sibley. After a confrontation over an expired license plate led to a gunfight, Block and Sibley were arrested and sentenced to death. Block, espousing sovereign citizen beliefs, refused legal counsel and argued the court had no jurisdiction. She was executed by electric chair in 2002, the first woman executed in Alabama since 1957 and the last U.S. person executed by electric chair before lethal injection became the norm. Sibley was executed in 2005.