Today we start off with the big question from last night's Lost episode. Does Jin die on the island or does he just remain behind?
I'm sure that the vast majority of folks out there believe Jin to have died, but there's no real evidence of that. Yes, Hurley said that they were going to go see "him" and that they went to a tombstone with, presumably, Jin's name on it, but I'd bet, whether or not Jin died, there's no body in there.
The date of death given on the tombstone is 9/22/04, the date Oceanic 815 crashed. We already learned during Kate's court case that the Oceanic Six have pretended as though the vast majority of people died in the crash, that only the six and a few more survived the crash, and that the survivors of the crash, save the six, all succumbed to their wounds shortly after the crash. For there to be a body in the grave probably would mean that the story Sun and the rest of the Six told was that Jin was buried on the island (they wouldn't have left a rotting corpse out for months), and then exhumed once they were rescued.
How could that possibly be the case? It simply can't be that Oceanic (or whomever helps rescue them) would exhume all the dead bodies and transport them back to their homeland. This is especially implausible if we accept the notion that some of the survivors of 815 opted to stay on the island — it would require all the survivors to dig multiple graves, grab the old Dharma initiative bodies and place those bodies into the graves as stand-ins for 815 passengers. It seems like an awful lot of trouble to go through.