Not conclusive evidence
User of ReiserFS after getting tired of annoying limitations of the others something like 4 years ago, I must say that it's a great loss for the community if this person goes to jail.
First because I'm happy to live in a country where, at least I believe, one cannot get convicted for murder just by means of circumstantial evidence. If you neither cannot find the body nor prove what has happened with it in a more or less conclusive way, you cannot accuse this guy of murder just because you're not able to find her wife. Just because this guy is a sociopath does not mean that he has killed someone. Just because you, or the majority of the society does not like a person does not mean that you can be happy that he is out of the streets.
I'm not saying that he did not did that. I'm saying that the evidence was weak and not conclusive. Yes, what was found in the car is strange, and the guy seems to simply reject to give a rational explanation of how it came there. Yes, he could have murdered Nina. No, you cannot jail a person just because you suspect something. You need to prove it.
By that same logic, every parent that calls the police when not being able to find his child would be instantly considered a murdered (ooopss, some Portugal village comes to my mind, yes it did happen but took months for the police to start considering that option)
Second because ReiserFS was, and still is, a very good piece of code that delivered a robust, non intrusive, and hassle free filesystem to the masses. At no cost.