Jason Todd Ready (February 17, 1973 – May 2, 2012) was an American marine, founder and leader of a border militia group and a member of the neo-Nazi National Socialist Movement who sought the elected office of sheriff of Pinal County, Arizona. On May 2, 2012, at Ready's home in Gilbert, Arizona, he shot and killed his girlfriend, her daughter and granddaughter, the daughter's fiancé and himself.