Was Gaddafi Executed Without Trial After Being Captured Following NATO Air-Strike?

An initial October 20, 2011 Reuters article about the mysterious circumstances surrounding former Libyan government leader Gaddafi's recent death, stated the following:

"`He (Gaddafi) was also hit in his head,' NTC official Abdel Majid Mlegta told Reuters. `There was a lot of firing against his group and he died.'

"Mlegta told Reuters earlier that Gaddafi, who was in his late 60s, was captured and wounded in both legs at dawn on Thursday as he tried to flee in a convoy which NATO warplanes attacked. He said he had been taken away by an ambulance.".