There are reports he was captured at Sirte and has been rushed to hospital for treatment of wounds.
see Al Jazeera
That should end the matter unless his sons try to fight to the bitter end.
UPDATE Apparently the first reports were false. Gaddafi was killed and his body transported to Misrata.
UPDATE Further information is that Gaddafi was captured alive but killed on the spot by out of control fighters. This is a black mark on the revolution but I doubt many will shed a tear. One son was also killed and Saif was captured separately. The French air force apparently blocked the escaping vehicles carrying Gaddafi.
Surely this must be the end of the fight. Now comes the rebuilding.