Yeah I agree that Zack was out of the blue, and yet I also see the possibility in his character. It would have been nice thought if we'd seen something leading towards that.

And it was definitely all smooshed together. Even as I think about it, the previous episode with the stalker, which I loved. I mean why did she stalk the other guy for months, but it only takes her a couple days to decide to shoot someone when she starts stalking Booth?