If people insist on passengering in an aircraft operated single pilot they will eventually die, the statistics say so. And in NZ of all places where "we're happy and everything's wonderful in our own world" CAA are doing nothing to reduce the fatalities. Why do you think most US companies stipulate that their employees aren't allowed to fly on anything single pilot IFR or VFR? Sadly, it happened in the past, it's happening now and it will happen in the future. My condolences to the families.