I think the good man River Song murdered/murders is the Doctor, and I'm wondering if Amy is the DW version of Dawn from BVTS - the key. Like she's a human manifestation of whatever the cracks are or what's causing them.
Okay, got that out of my system!
Did I mention I'm really enjoying this Doctor? The show makes me happy like I remember feeling when I first started watching DW back in the early eighties.
Now to catch up on the six eps of Merlin we have yet to watch.