VFR into IMC should be a non-event for all pilots because it's illegal, for good reason. But there are many things that bring airplanes down that "should be" non-events, and VFR into IMC is near or at the top of that list, even for instrument-rated pilots. In this case, the FlightAware track almost looks like they tried to make a 180-degree turn out of IMC, then pick their way around, under, or through the weather until they stalled and crashed. What I want to know is why they didn't file IFR. Nearby METARs from a post on Kathryn's Report were overcast between 900 and 1200 feet. Who would look at that weather and decide to launch VFR in a Pilatus? You just need a better imagination, that's all. Instrument rated pilot at the controls or not, a number of PC-12s have met violent ends because pilots asked too much of the plane or forgot how to fly and either lost control or pulled the wings off. The PC-12 is a fantastic airplane, but a pilot still has to fly it.