"America should offer support to the Afghan government (the taliban) to remove him from the country, and if they don't accept the support then they should then consider helping an opposition party form in Afghanistan."
No,no, no, no...This method of dealing with a situation has gone sour every single time, eg a little funding to the afgan against the (Former) USSR, same as weapons to sadam husain during the IRAQ/IRAN war. And shouldn't send troops in to "help" like Vietnam.
Now supposing that Ben Laden is killed, and he turns out innocent in this case. Do you really want to think about the concequences?
As to suspicion to who did it, there is no actual evidence to link him yet. Just that he has the motive, and possibly the means. I would like to point out nothing as intracit as this has ever been instaged by him, we maybe looking at someone new .
It's easy to come up with possible ideas and solutions, but you need to know your history to see how likely they are to work.
(i'm sorry i've rejioned the topic, i said i wouldn't but i take the situation quite seriously).