How died Muammar Gaddafi..

Muammar Gaddafi came in Libya's source in 1969 year and strictly ruled Libya until 2011 year.In 2011 year while flying in tripel,Libiyan civil war's rebels caught him.Gaddafi's location was unknown for a long time,but then was revealed that he was hiding in Sirte.NATO's aviation bombed Sirte on 20th October and Muammar Gaddafi escaped with convoy from Sirte.
After caughting Libyan people pitilessly had beat him.What happened after this beating is still a question of argument.With first sources during crisscross fire Gaddafi was accidentally killed,but according to 2012 year's Human Rights Watch's notification,this is not a truth.With copied cadres from mobile phones it is well shown that Gaddafi is beaten and head-broken in captivity.They say that he was shot.Shortly the fact is that, he is dead and his death's exact cause is unestablished.
Watch a video about Gaddafi(To watch this video till 18 age is in no purpose):