I don't know if this will lead to anything but, I Have to bring it up.
When A.L., Sayid and Charlie are off on their nature hike, to find the ballon, Charlie asked A.L. if she was checking out his bum. No, It's a gun. Then the whole sceen about her killing Shannon and in the end Sayid gets the gun.
Okay! Unless Charlie has a very good excuse ready to go on how he has one of the guns that Sawyer has taken, I would have to believe that Sayid and A.L. may figure out that he helped Sawyer steal the guns.
They have such trust issues as it is, that It's not that far a jump to figure out the attack on Sun the same day was a distraction. Sawyer didn't do it. So....There's Charlie. The fear Charlie attack caused is the same type of fear that got Shannon killed. I would not want to be him if and when the two people who where hurt the most buy Shannon's death, figure that out.
It just seems odd that they would put that sceen in for no reason. What do you think?

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Hope is a very dangerous thing to lose. - Sayid

I do what my Rice Krispies tell me to. - Anonymous