On FX and Hulu.
I was worried, because Errol Morris is on Jeffrey MacDonald's side and wrote the book of the same name. He directed The Thin Blue Line, which helped exonerate a man on death row, so he has some street cred. Anyway, the series is pretty evenhanded and gives the victim's brother an open platform. I haven't read his book but the review I read said they weren't convinced of MacDonald's innocence by it, but they were convinced he didn't get a fair trial.
Looks like they'll argue Fatal Vision was inaccurate and prejudicial, which was my first exposure to the case.
It stars Karl Malden and a young pre-comedy Gary Cole.