"Armed with his weapons of choice--two sawed-off, double-barreled shotguns in custom-made holsters for pistol-quick draws--Shotgun Johnny ain't stopping for no one . . . not unless they want to die. Johnny Greenway was once a family man. A well-respected marshal who always played fair. Then his wife and son were killed by cutthroats. Johnny killed the killers. Then he hung up his badge and picked up a bottle. Now a shadow of his former self, he has...