Just after 5:00 AM Santa Anna's forces attack.  The first two attacks are repulsed but on the third attack the breach in the north wall is penetrated and Mexican soldiers pour into the compound.  Travis dies next to a cannon on the north wall.  David Crockett is killed with his men trying to defend the weak wooden palisade along the south side.  James Bowie is killed in his quarters, probably too weak from tuberculosis to offer any resistance.

Fierce hand-to-hand combat goes on until the Alamo cannons are turned against it.  The huge 18-pounder in the center of the plaza blasts the last hiding places in the barracks.  Anyone who survived was bayoneted to death.

If any prisoners are taken, they are swiftly executed.  The bodies are heaped in a pyre and put to the torch.

The entire battles takes less than 90 minutes.

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UPDATE:  Whose Paranoid posts the entire list of known Alamo defenders and other participants.