Upon arrival- a fire company found a van that was off the road and had rolled over.
Crews located the van's driver who was unresponsive and was believed to have been ejected from the van during the crash.
That person was declared dead-on-the-scene by EMS.
The deceased person was later identified by KC-MO police as 51-year-old Bruce Bechthold.
Police searched and located a short distance north of the van's crash a 2nd vehicle who had reported rear-ended the van on U.S. 169 and drove off.
Police didn't locate that vehicle's driver- but traced license to a Gladstone address where a person was later arrested.
Northbound U.S. 169 was closed by police at Barry Road for several hours Saturday morning while the crash scene was investigated.