The radio was talking about this in the morning.
I guess the charged him with the murder of his wife and he got off.
But in an interview he just did, his phrasing in response to a questions hinted at more than one murder.
He was never charged with the murder of his wife, or his friend. He was charged and tried for the murder of Morris Black in Galveston. All this over the course of 20 years?
It is universally accepted that he killed all of these people (he admitted the last one), but there was never enough solid evidence to convict him.
His phrasing referenced the 3 murders that he has always been suspected of committing. This admission in the show came after he was caught in some rather damning evidence regarding the 2nd murder.
I think beyond asbergers/autism spectrum, dude has some form of dissociative disorder. The way he talks to himself, as if he is part of a conversation between 2 individuals. It's like Golum in Lord of the Rings.