It was always going to be tough to maintain the heights of the first episode. Naturally, seeing the night of the murder was always going to be the most intriguing part. I have to say though that the follow up episodes have been quite disappointing personally.
I thought this was set up to be a comprehensive, ultra-realistic procedural following the case from the start all the way through to the conclusion of the court case with realism over dramatic tropes. And to be fair, I think the first episode deliberately painted that impression. Since then though, it's picked up some silly and played out habits, and unrealistic oddities added to spice up episodes. The prison scenes especially seem unoriginal and forced.
I'm being ultra-critical here, and I know it, but only because I really like this and thought it was a great idea (albeit lifted from british tv). The production values are great and the acting has been of a high standard too. The script has been limited though, which would have been fine if they'd committed to realistic if a little bland dialogue. Unfortunately it seems a little in between that and occasional poetically licensed directness.
I'm just a bit disappointed it hasn't tried anything new or expansive at all, after being so well resourced and after such a promising start.