From the CBS link above:
Nearly 300 bodies, many of them with their hands tied behind their backs and shot in the head, have been collected from across Sirte and buried in a mass grave. The new government has been slow to confront allegations of atrocities by rebel fighters, despite repeated calls for them to do so.
As things are evolving and as the new Libyan leaders openly embraced Sharia law, one can only wonder if the new government would be any better than the Gadaffi regime.
It is notable that the new government did not deny that the 300 pro-Gadaffi fighters might have been executed by rebels. The response from a government official was (from the CBS link above) was:
"You have to bear in mind that these young man have seen their friends killed in front of them, who saw their cities burned, who saw their sisters raped. I am amazed at their self-restraint," said Ali Tarhouni, oil minister.
The evidence indicates that little restraint was shown.
In other words, it seems that the rebels now are committing war crimes in response to previous war crimes committed by the Gaddafi regime. Obviously that is completely unacceptable and raises serious doubts on whether the new Libyan regime will be pro-democratic.
It will be now also interesting to see whether the rebels who are committing such war crimes will be indicted by the international world crimes tribunal in the Hague and whether NATO will try to stop such crimes.