Here is my theory. At first you may say the time frames don’t add up, but from what we have seen this year, i dont think time is a big issue as with all the jumping about thats being going on.
I am really intereted in the guy dressed in balck at the start of the season 5 finale. And several things stood out for me.
1. The black and white theme coming back into play – light versus dark
2. The fact that this guy wants to kill Jacob so badly – what pushes someone to want to do that?
3. The obvious way jacob did not call him by his name when he called Jacob by his name – why do this? i think to hide the fact we may already know this person – biggest clue for me!
So, then my brain starts to think about who do we already know who this person could potentially be?
My thoughts led me to Aaron, and this is why:
Right from the start Claire was told that SHE must raise Aaron and no one else, that the ramification for her not bringing up Aaron would be a disaster! If you look back at that episode we know that the clairvoyant was a fake, but who would tell him to convince claire of this? Jacob perhaps?? To ensure that she stays on the “right path” as he did with all the other losties we saw in the finale, she keeps Aaron, Jacob orchestrates her to be on flight 815, get to the island, where he can maniupate and keep an eye on her to ensure she does indeed raise Aaron. Because, if Aaron doesnt have Claires “goodness” then he would turn bad – possible like our black shirted friend. However, the events of season 4 transpire, and the guy in the black shirt, taking on the form of Christian amongst others manipulates the situation so Aaron and Claire are seperated so he, Aaron can become the black shirted man in the futrure and then return to the past, how or why i havent thought of yet. Confused yet?
In season 1, where Locke appears to claire in her dream, the one where he has a black and a white eye, he says “we all pay the price now” Now, i take 2 things from this. One is the black and white eye, that Locke see’s things from Jacobs view but also pre empts the evil side as his body will evetually be used by Aaron/ black shirted man. I also think this is the work of jacob, using Locke again to reinforce a point to Claire through the medium of dreams.
I cant type anymore but would like o hear thought on the general idea that aaron is the black shirted man.