I'm at work so I have a fully functional keyboard!!
A few thoughts:
I think the reason there is not an arrest yet is that Castor is waiting to get evidence that would solidly justify a charge of 1st degree murder. Right now if the case went to trial with what we know, it would probably be a manslaughter or murder 2 or 3 case. Castor may want to develop evidence of premeditation, which he does not yet have. More forensic accounting and discussions with acquaintances perhaps. Key students and employees may still be away from Penn and have not been interviewed. Maybe the forensic computer geeks have been away and haven't been able to complete their analysis of his computer. If Castor can get enough to indict on 1st degree murder he will have a much better shot at a plea bargain. He might also be planning to convene a grand jury
As to the dna, I suspect that something was found, like skin under her fingernails or blood other than hers at the scene. Over the holidays the lab determined that the dna did not match hers. Now the next step is to find a match. I would rather have the lab running on a full tank of gas than have this testing done over the holidays. Probably it was prudent to wait.
About the dog: it is a small dog. I am guessing it might be in its crate that time of day and out of the way. It wouldn't be really loud in any event. There are only two neighbors whose homes are positioned so that a frantically barking little dog would be heard from inside the Robb home.
The gaming theory stuff is interesting, but to me it is just another way of explaining the same old story: husband has the upper hand, wife gets fed up, wife wants out, husband kills her. You can use whatever jargon you want, but his motive isn't anything special. Just the usual combination of money and control IMHO.
I had not heard that she had money of her own. I find that surprising because it appears to me that they were living rather below the standards that his salary would allow. That is a tiny house for two estranged people to be sharing. But maybe they are just really frugal. It is still very strange. If they could get along well enough to live in the same house, they should be able to get along well enough to share custody even if living apart. I don't understand why anyone would live like that. Was he afraid that Ellen would get a boyfriend? They could easily have afforded for Rafael to have an apartment near campus. It just seems so very creepy!!!
I am still interested in the fact that her name was not on the deed for several years after "they" bought the house. And his use of two surnames is creepy. I don't get it.
