He would've never been brought to the ICC. The NTC made it clear that they were planning on trying him in Libya if he was captured. And that would almost certainly have ended with an execution anyway.
Bush, Blair, Berlusconi, Sarkozy etc. Pretty sure too many people like these would be shamed by this lunatic. Maybe it's best that he died, the world wants to keep its heroes.
Having him testify in Den Hague could have provided very interesting insights on how corrupt the so called "democratic" governments really are.