I'll wait for some facts. Been through this before for a plane departing our airport a few years ago. Low altitude airborne LOC resulting in stall-spin crash into a field on a perfectly nice day with an apparently perfectly functioning airplane. The speculation was rampant, but pretty much totally inaccurate and uninformed.
The NTSB folks will figure out some things that will hopefully help understand this incident, which on the surface seems somewhat inexplicable. Unfortunately, when the airplane experiences significant damage due to impact, some things, like which parts were or were not functioning and control settings, may not be able to be determined precisely. But the NTSB investigators are pretty good at this. If they do an initial briefing, we might learn something, but the final report will take 12-14 months, probably.