Three parts
To account for the three pieces, here is my opinion based on the aerial views (See NOSJOURNAAL).
Aircraft struck nose up. This means the tail section hits first (BREAK1; where elevator is found, about 1/4 mile before the rest of the aircraft). No longer having a tail and with CG normally FWD center of lift (no elevator at all) the airplane started pitching down. As a result the attitude changed rather quickly to point the nose down in the last few moments. When the nose hit, it caused the 2nd fuselage break resulting in 3 pieces.
Best to you all. Hope no-one close to you is hurt