I'm fairly sure no one will see this, but I feel compelled to add my two cents anyway: As much as I hate to admit it, I'm very suspicious about Hodgins' involvement with the Gormogon character. His likeliness as the Gormogon character was highlighted multiple times throughout the episode: He has almost unlimited means with which to achieve his goals, he certainly has the intellect to pull of the garish feats, and he has clearly demonstrated his dislike for clandestine societies and organizations throughout the season. While some might cite the brief image of the killer in the closet at the end of the episode as proof Hodgins is innocent, it's just as likely the killer was not Gormogon (Hodgins), but rather the new apprentice.

Furthermore, three events contributed to my suspicion: 1) His excitement at opening the Mausoleum which contained the completed sculpture of Arthur Graves, and 2) The suspicion with which Sweets treated Hodgins when Hodgins explained that the Gormogon "started off as good guys," championing the ideal that humanity should be free of the influences of the secret societies 3) At the very end of the episode, while the song "Low is a Height" is playing, Hodgins walks up behind Angela (who is in the Vault) and startles her, which appears to me to be distinct foreshadowing.

Regarding Sweets--while I agree there are signs suggesting he could be related to Gormogon, I don't believe he is. As someone mentioned earlier, Sweets has been added to the credits as a regular character--it seems illogical that he would be added as a regular, only to be removed as such at the completion of the story arch. A more likely scenario would be that his character was added to the shows roster in preparation for the departure of another team member: Hodgins. A foreshadowing of Hodgins' replacement is Sweets' suspicion of Hodgins' wherein the new character's intellect trumps that of the old, hopefully helping the audience to forge a bond with the replacement.

brett... found the song Great Northern.... "Low is a Height"

I love Sweets and have never thought for one second that they were trying to make me think he was Gorgonzola. It doesn't seem fair to accuse him of "knowing too much too quickly" when Cam doesn't even have to kneel by a body to assess it.

I always think it's crazy how quickly Bones jabbers out details about a person from one glance at a pinky bone. But I accept it because that is supposed to be a reminder that she is a leading expert in her field. I accept Sweets' knowledge in the same vein. Isn't he supposed to be, like, 22 and already a doctor? The kid is massively intelligent. He is exactly the kind of expert this show presents to us on a weekly basis.

I didn't know that Sweets was added as a regular. I am thrilled by that. I hope he actually begins to work at the Jeffersonian and then can't help himself from analyzing all his coworkers.

How could it be either Sweets or Zach? they still have all their teeth!

I think while Zach being Gormogon would be a good twist it seems improbable, they'd sacrifice a lot of credibility. We know he's not athletic, can't drive and has a father (not a widow's son).
Sweets could be a candidate (Booth's comment in his first scene 'I'm sure your mother's proud of you', might be deliberate). But it is also seems a little obvious, he walks in so often at key moments, has odd insight and expressions- maybe he is just very good at profiling? I think he is a decoy, or at least not the new apprentice. It is interesting that it would be important for Gormogon to understand and gain the trust of the people investigating him, although I think Sweets appears in the same episode as the first Widow's son murder- in the plot it implies it was arranged before as FBI protocol. It seems unlikely Sweets would be infiltrating that particular pair of agents in working for the FBI before the case has even begun.
Jack is an interesting option, they've said what a good candidate he is so many times it seems like you are meant to rule him out. But he is too old, it seems unfeasible. Also, he is the sole heir to his estate, implying his father is still alive (and besides, it seems as if Gormogon recruits are not generally wealthy).
Will be interesting to see where it goes. But it seems the Baby in the Bough isn't airing now? Seems a shame, it looked as if it might have been good, and while a Bones Christmas special is probably better than most the formula can be a little tiring.
Good episode though, character development between Russ and his father, Brennan with respect to relating to the child, and obviously the case. Angela and Hodgins seem to have totally disappeared from the plotline though.

Jim....im totally getting u abt the old man. as in i totally jumped out of my seat....he sure as hell was freaky. wat was with his smirk as they were leaving???

But that was an amazing episode for me. full of action...but has anyone noticed that Bones doesnt actually do so much of her forensic anthropology anymore....Zach does most of it!?!...so he is so 'King of the Lab''....

I found the song that was playing at the end of the episode

Low is a Height by: Great Northern

I agree that they are being a bit too obvious with Sweets as a suspect -- but until or unless we know more about his past (was he ever connected to Social Services, for example), it's up in the air. Sometimes going for the obvious when everyone is thinking that it would be too easy is a good fakeout (if that makes sense).

I'm surprised that nobody's commented yet on the most disturbing part of the whole episode for me -- the hissing old man -- that was freaky-scary.

It was an amazing episode - much as I still loathe Sweets.
I voted for the first choice in the poll - in spite of the fact that I think the cast came together in the second half of the first season (once "Bones" stopped being Mary sue and became a human being). The stories may have been uneven since, but the cast has been great throughout. Except Sweets. He grates.

I'm suspicious of Sweets too. He knows too much and he was behaving very strangely. But the hints are much too broad for him - if it is actually him, then that's pretty bad writing to have so many of us thinking it's him so early on. I think he's part of it - was he one of the boys Gormogan the elder tried to recruit, perhaps - but I don't believe he is one of the actual Gormogans.

Also, I TiVoed the ep and watched it frame by frame and I best I can tell the Gormogan at the end is neither Zach nor Sweets. (Plus, given what we know of Zach, do you really think he could swim well enough to pull off the pool bit in full motorcycle gear?) That's not to say either of them couldn't be involved - Gormogan does have an apprentice, so the kid in the closet could be that. He did look very young.