I'm not going to go into the technicalities of operating the B200, but if the pilot had no stand out medical issues and the aircraft was serviceable, could this accident be as simple as a distraction in the cockpit or cabin at the wrong time ie: the pilot or passengers phone ringing or an incoming text message? Yes, I know that all phones should be switched off, but I know plenty of pilot's who have their phones on at all times and this is not just a GA issue.