(Dallas, OR)  --  An Oregon State Police trooper is listed in serious condition following a fatal crash in Polk County.  Trooper Bryan Fitch was a passenger in a Ford Ranger driven by his 18-year-old son, Cayden, when the vehicle crashed head-on Friday night into an oncoming Toyota on Oregon 22.  Cayden Fitch was killed, as was the driver of the Toyota, 69-year-old Michael Joseph Moylett of Gresham.  Moylett's wife, Estella, is listed in good condition.