I hadn't picked up on the fact that he hid it from the police. Assuming for just a minute that all he was guilty of was having an affair, why would that (his wife being there) be a fact that he would try to hide from the police? I mean, I can see it if they are calling him or showing up at the front door and asking if his wife if there bec they want to question her -- but telling the police that she (his wife) was there there at the same time CL disappeared would be a good thing for him -- if he was innocent of kidnapping or killing her. This leads me to believe that he did not want them to confirm his time line with her and find gaps he could not account for -- time used to do the deed. This is only relevant IF he is guilty of murdering her, not of just having an affair with her. Am I missing something?