I spent a long drive to Denver and back listening to that first season and trying to figure out why people were so entranced by the story. I don't feel like the later episodes really added a ton of new details to the story. Just kept waiting and waiting for some big piece of the puzzle to be revealed to convince me he wasn't guilty. Nothing much ever came out. There's also an HBO special which adds barely anything more to the story. Dude is guilty.
Many other, much betterpodcasts to listen to these days.