An Oklahoma man has disappeared after a trip last December to Jackson Hole. The family of “Koby Minshall launched a nationwide search for the 52 year-old man after his cell phone stopped receiving calls. The family says they have no work information or permanent address for him and have become concerned about his welfare. Minshall was last seen driving a 2000 white Ford F-250 pick-up truck with Oklahoma plates. The family asks that anyone with information about Minshall’s where-abouts call 501-837-1437.