Article Photos: Missing for decades: Investigators pursue leads to find Oklahoma escapees 21/27

Oklahoma Highway Patrol Lt. Hoyt Hughes recovers after suffering a shoulder wound in a gun battle with two escapees from the Oklahoma State Penitentiary in Caddo on May 26, 1978. Three troopers were killed in the shootout, including Hughes' partner, Lt. Pat Grimes.  Photo by J. Don Cook, The Oklahoman. Copy of a print from The Oklahoman Archive, Tuesday, Dec. 6, 2011.