At about 1435 Eastern time, the airplane was substantially damaged when it collided with wooded terrain during a forced landing, which followed total loss of engine power. The airline transport pilot was fatally injured; the private pilot passenger was seriously injured. Visual conditions prevailed. According to the FAA, one of the pilots reported on 121.5 MHz the engine was running rough and losing oil pressure, and they were performing a forced landing into woods. The airplane came to rest inverted. Oil was observed on the underside of the fuselage and empennage. The No. 3 cylinder was observed partially separated from the engine and an approximately four-inch hole was observed in the top of the engine crankcase.