Thomas William Barkfelt, 56, was last seen October 12, 2015, in Pineville, Missouri; his residence was in Fairland, Oklahoma. He had undergone brain surgery in February 2015 and afterward showed changed behavior, with family reporting confusion or possible delusions. He also suffered seizures and reportedly needed medication.

On October 24, 2015, a light blue Ford Ranger registered to Barkfelt was found abandoned at Spavinaw Hills State Game Refuge near Eucha Lake Dam in Delaware County, Oklahoma. Wardens said the unlocked truck had been parked there since at least October 15. The vehicle contained his wallet, cell phone, car keys and other personal effects; his shoes were found elsewhere in Delaware County the same day. Searches of the area did not locate him.

Law enforcement in Missouri and Oklahoma are listed as involved because he was last seen in one state and his truck was found in another. The circumstances emphasize his medical vulnerability and the unexplained gap in his movements. Does anyone who knew Thomas or saw him in mid-October 2015 have information that could help clarify where he went?