The Icon A5 is indeed a new aircraft, and I can confirm the original chief test pilot was killed in an accident. That crash was investigated and ruled pilot error, however.Just awful awful awful news...
Someone on Reddit posted something about this being one of the very first planes in production by this company, and that the original test pilot died too. No idea if that has been substantiated.
The A5 is a small two-seat amphibious aircraft that has folding wings so one can trailer it to the water just like a boat. It falls under the "light sport" category and is limited to daytime flying under visual conditions.