Yeah, it's tough when it's someone close to your social circle. The single engined version of this airplane (Arrow 3 or 4) would have met the requirements for spin recovery for certification, not that that implies spin approval though. But, the twin engined version would have different inertia, and twins are not required to demonstrate spin recovery. So, sadly, that pilot was a test pilot. All that can come from that sad event is hopefully other new pilots learn that some airplanes should not enter some phases of flight....