The two men accused of shooting dead a pair of police officers in Arkansas last week have been tied to the far-right-wing Patriot movement. Police say Jerry Ralph Kane and his sixteen-year-old son Joseph shot dead the officers on Thursday. The two Kanes were later killed in a firefight with other law enforcement officials. Authorities say the elder Kane had been involved since at least 2002 in the Patriot or sovereign citizen movement that believe the government has no legitimate authority. The car Jerry Kane was driving was registered to property that is owned by an aging white supremacist.