At about 17:15, CST, a Cessna 182Q crashed into a mountain about 4 miles east of Piedmont while in cruise flight. Instrument meteorological conditions prevailed, but no flight plan was filed. The pilot and front seat passenger were killed and the rear seat passenger was seriously injured. The flight originated from Cape Girardeau, Mo., about 2 hours 45 minutes before the accident. The survivor, who walked from the crash site the next morning, said the pilot was having to slowly descend to maintain visual contact with the ground, the sun was setting, and they simply flew into the mountain.