I'm glad the characters on this show are good at figuring things out. At 10:47 EST, once they'd established that the rich guy's plane had blown up and they were watching the footage of the catering truck driving up, it struck me: "He faked his own death." It was a story about magic and misdirection, so naturally nothing could be what it seemed. I was afraid this would be one of those cases where it took the characters until the end of the episode to catch up with me and I was yelling at them "He faked his own death!" over and over until they finally caught on. But instead, they figured it out by 10:49, less than two minutes later (though somewhat longer in-story, allowing for scene shifts).
I have to confess that I still don't really care that much about the characters other than the Castle family and Beckett, so the stuff lately about Ryan's and Esposito's love lives really isn't doing much for me, aside from the initial surprise reaction of seeing Espo and Lainie together.