and after listening to 'serial', give 'undisclosed' a listen - they dive much much deeper into the details of the court case, police records, evidence, etc.
It's a very different experience, and clearly incredibly biased, but I agree that it's a good listen if you got into the case and are curious to learn more about the facts and players. Some of the wild theories they come up with though are simply incredible to me - they seem like level headed people much of the time, but the lengths they will go to suggest a conspiracy (where simple incompetence is a much more probable reality) can truly blow my mind.