This episode was rather random. It felt very rushed at the beginning like they wanted to make sure they got Booth back on screen as soon as possible and the wasn't much explanation about the guy who turned up at the funeral. All of that fake death and fake funeral and all we got was a couple of lines about it?!
I am really truely hoping that the whole episode will turn out to be a dream Booth had while he was in surgery for the bullet wound. That may explain the random bathroom scene.
The finale may have been better if it had been a 2 parter.
I still think Sweets being the killer would have made more sense.