Ok I can kinda see the holes in the story but what ppl havent thought of are:
How did Hiro know where to pick up Claire from? also how did he know the exact destination if he's forgotten the times he's been to the rooftop?
Where did Sylar get a can of lighter fluid from (also why didnt he just use his 'nuke' powers to vapourise her?) (also also you cant burn a bosy with that piddly amount of lighter fluid, theres too much water in it it would only char a bit.)