Yes, he was a narcissist who was worried about his daughter getting a new pair of shoes while in police custody.
If Oswald was worried about his daughter (or the young children of the two men who he murdered) he would not have committed the crime in the first place.
Duh, it goes both ways. Oswald didn't know he was going to be set up as a patsy for the murder. So of course an innocent man would be worried about his kid getting new shoes. They probably had already talked about it before he was falsely arrested. Duh.
At the end of the day, we're all speculating. I just wish some would be more humble and admit that it's not possible to know with absolute certainty that others weren't involved or what Oswald's motives were if he did in fact do it alone...