Are we sure she's dead? My impression was that we didn't know for sure, I thought that last seen left us kind of hanging in ambiguity.
I really don't care. I'm just glad it's over. I don't think there could be enough people left in this disorganized "security" agency to continue with any more episodes. I didn't keep score but someone may be able to figure out how many of the agents and employees were killed by the bad guys because of the incompetence of those in charge. Was Palmer worth it? Seems that he was manipulated by others until he got rid of his wife in the last few minutes of the series. Maybe that makes for a good President.
11:59: Jack follows the wake of dead CTU guards that Nina left in her path. He enters the transformer room and finds Teri with bullet wounds in her abdomen. He picks up her lifeless body and collapses to his knees. As Jack cradles his dead wife, he breaks down in grief and sorrow.
I guess dead means just that, dead.