Martinaire Caravan, down pilot killed, near KPLN

Here's the flight KCIU-KPLN with result unknown. So perhaps the crash actually happened on that leg. Either that or that leg was never recorded as finished and then it happened on takeoff for the KPLN-KLAN leg before takeoff.

This flight is a daily KLAN-KPLN-KCIU-KPLN-KLAN feeder flight for UPS.