Huh Brian, "No Concorde crash" !?
There was indeed a Concorde crash at Paris, and it did roll over just before impact, although the roll may have been more to do with large asymmetric thrust and fire/damage on one wing than a 'true' delta aerodynamic effect.
The Russian 'Concordeski' crash at the Paris airshow was a structural failure whilst attempting to recover from an upset, not a stall.