He needs to be taken alive. Not necessarily unharmed, but alive. Otherwise you stand the risk of having radical Islamofascists praise him as a martyr.
I like the taxidermist idea
I also like Alpha 1's proposal, which I believe I've seen before, but I wouldn't put him in the foundation of the new WTC. That just doesn't seem right to me.
My proposal. He does need to get a trial on US soil. But I'm not sure if it should be a civilian, regular trial (before which court? The Supreme Court?) or a military tribunal (um, or trial, I'm not sure of the proper terminology). After all, he did declare war on the US in 1993.
The most important thing to do is to show the radical Muslims that he is captured. It would need to be heavily publicized to ensure that Islamofascists know that we got the bastard. Because they do respect strength.
And for sure, if Pakistan captures him, then we need to heap praise on their nation and its leaders. Ditto if French guerrillas find him. It doesn't necessarily have to be us.
I do like the idea of parading him around the country liked a caged monkey for all the US to see. I imagine that security for that would be difficult to arrange, though.