ARAPAHO, Okla. - A state prison inmate has been charged with robbing a Weatherford pawn shop at knifepoint. Robert Ross Jr. of Clinton is accused of holding the store clerk at knifepoint in December then tying her hands and feet with electrical tape. Ross was arrested last month in Bethany after leading Oklahoma Highway Patrol troopers on a high-speed chase in Canadian and Oklahoma counties. He's in custody at...