Not as Good as Serial
There's been a lot of comparisons of this show to the podcast Serial, which makes a certain amount of sense since both are true crime stories which aired fairly close to each other. And there's been some mention of how the Jinx has a more satisfying ending because we actually seem to get an indication of Durst guilt with the letter and the bathroom confession.
But I don't think that this is as good as Serial is, and I'll tell you why. The ambiguous ending of Serial, which does not conclusively point to Adnan Sayed's guilt or innocence, is perhaps not intentional but is deeply fitting with the nature of the show. The Jinx is really about the eccentricity of Robert Durst, but Serial isn't so much ab I UT the crime itself as it is about the limits of knowledge. Sarah Koenig starts off the podcast by talking about how "I've spent the last year trying to figure out where a teenager was during two hours in January, fifteen years ago" and her summation of her feelings on the case is that she thinks there was not enough evidence to convict Adnan but "Did he do it? I'm not sure." In between those two points we get constant efforts of her and her team truing, and failing, to get at the truth. Because we can speculate about whether Adnan did this or that or what this piece of evidenceans, but we can never really know.
For me, the Jinx, while very engaging, lacked this sort of thematic depth. It was an interesting story about this crazy guy, but it doesn't equal Serial's meditation on the nature of truth and knowledge.