the prelim NTSB report is out, not much to report other than the data recorder was found about 80feet away charred. The witness was a CFI. Apparently this second attempt at landing was about 8miins after the first. The aircraft was about 40ft up when it appeared to pitch and roll over - left wing tip touched ground, it cartwheeled and after inverted impact an explosion was heard
The explosion could have been the BRS going off. Also sounds like he was in the process of another go around given that he was at 40 ft