Originally Posted by
sandydune:
“Also on the living room wall of the lady journalist were the words make believe.
”
I noticed that too when rewatching last night!
Originally Posted by
Lowri:
“I think this music was absolutely perfect for the scene 
Another thing, after Sherlock said he didn't like riddles, Moriarty said that he must learn to, because IOU. Does this mean that IOU is a riddle?”
I've read this theory elsewhere and I like it. Sherlock's singing of 'I've Got You' could be a clue to this too, but other than that I have no idea.
Originally Posted by
agonydoc:
“There is a close-up of the shoes on the edge of the building and they don't look like the kind of shoes Sherlock usually wears, much too insubstantial and Italian looking
.... Could they be someone else's feet? Or am I letting my shoe obsession go too far?!
”
I was thinking the same about his shoes. They look far too elegant for a private detective who does a lot of running around. I do think they're supposed to be his shoes though.
Originally Posted by Lowri:
“I know what you mean. I suppose on the rooftop, Moriarty said that Sherlock was too clever and didn't think that the boring, obvious answer could be right.
Yet another thing I've just remembered, why would Sherlock pick the hospital roof? Did he not think that Moriarty was speaking literally about a fall? He sort of brought that on himself!”
Yes he did, but then he was obviously prepared to survive it so all's well that end's well. Sherlock obviously thought that he had a better chance of surviving the final encounter with Moriarty if he chose the time and the place (and thus the whole set up for his 'death'). Had M chosen the place, the end would have been so very different.
I popped round to my parents last night for tea and ended up watching the repeat last night (we've all already seen it) and we had quite good fun looking out for clues all the way through. We ended up tying ourselves up in knots as there wasn't a neat answer to anything. We are thinking either Moriarty has faked his own suicide or...Well, I'll come to that at the end of this post.
Originally Posted by
IvanIV:
“
But another thing, analyzing that dirt from the footprints... That would mean that that person was already at the place where they kept the children, having a good walk around to pick everything on the shoes and not picking anything distracting on the way to the boarding school. Or was it just constructed for Sherlock to find out and he already was treating it as a puzzle that Moriarty set up for him and that had a solution?
”
Well presumably, if he was going to kidnap two children, the kidnapper would have done a reccy of the hideout first to check it was deserted. What self-respecting kidnapper wouldn't?
Originally Posted by toastynoggin:
“Could the small surveillance camera that Moriarty planted in the flat have any significance? I wonder if Sherlock took it with him when he was arrested. I've no idea how it would fit with the plot though!!”
Ah but did Moriarty plant it??
The Moriarty Theory
Now to a theory which my dad had concerning Moriarty. It could well be too far-fetched but it's pretty interesting. We were looking out for something out-of-character (turns out a lot of what Sherlock does in this ep could be termed out of character!) and my dad struck upon this. When Sherlock and John visit the journalists house and the whole Rich Brook thing is being explained, Sherlock says nothing. He simply stares at Rich Brook while Watson does all the talking. Only at the end does he start to shout, before they all run out. My dad's theory is that Sherlock's speechles as he's becoming to realise that this isn't the Moriarty who he's met before. There are two Moriarty's. Lookalikes but probably twin brothers, Identical except for slightly different mannerisms and one brother is more balanced than the other. He is Jim Moriarty, the slightly more sane of the two, though a psychopath nonetheless. His brother, NotJim is fully insane. They pretend to be one person, as one person in charge of an empire is stronger than two (esp when one's VERY insane). They both call themselves Jim Moriarty, and NotJim comes to believe that he is Jim Moriarty and has many identity problems. NotJim is the one who dies on the roof. Now Jim Moriarty survives, safe in the knowledge that he has now advertised his skills to the criminal world and can secretly go about his business as the police, press and public believe him to be dead and his greatest adversay, Sherlock is also dead. This is why he had to ensure Sherlock killed himself, even after Moriarty's own death. Because it wasn't the real Jim Morarity which had died, it was the brother.
He might even go by the false name of Sebastian Moran, and only be known as Moriarty in the underworld.
Sherlock recognised this at the journalists house, and knew that Moriarty was planning Sherlock's death and the death of his double, with the ultimate aim of going back deep underground. Sherlock's only way of sniffing the real Moriarty out, was to also go deep underground. Sherlock is playing Moriarty at his own game.
This theory ties in a little with ACD's Moriarty and his brother. ACD names both Professor Moriarty and his brother James Moriarty. This was a mistake, of course, but Gatiss and Moffat have gone on record (on S2 commentaries) as saying that they try to include ACD's mistakes as injokes, and try to give them a logical explanation. They also mention the two James Moriartys coming up in S3. Now chances are, they are saying this as a joke to tease the fans with no intention of ever doing it. Or maybe there's something in it, as this is the ACD mistake which most people notice and remember. It is like Gatiss and Moffat to want to explain it away.
Either that, or the one and only Moriarty killed himself on the roof.
We still have lots of questions as to the various hitmen, their deaths and who they were hired by to begin with, and what the whole point of them was anyway due to the code's lack of relevance. I seriously hope it's all neatly tied up in the next episode. If anyone else wishes to clarify though, feel free

.