NSFW
Even though it doesn’t include any reenactments or interviews, just summation over newsreels and crime scene photographs, I think this is it.
There is just something nightmarish about the intro, and the narrator’s voice is pretty unsettling, as are some word choices/comments, that go beyond just summing up the facts of the case. And then there is the fact they show crime scene photographs uncensored. It is not a well-known series, but it is more disturbing than more popular and long-lived true crime shows like Forensic Files, 48 Hours, Deadly Women, FBI Files or even Unsolved Mysteries during the Robert Stack era.
The part that is more interesting than disturbing:
Even though pretty much everyone thinks that OJ did it, it is interesting to see a documentary/series that just straight up says it and eliminates any other theories, no matter how far fetched, even putting down his excuses and defense team any chance they get. Also, good job of summing it all up in less than 20 minutes.
Too bad they didn’t cover more cases (Ed Kemper, Jeffrey Dahmer, Joseph Kallinger, Alton Coleman, Aileen Wuornos, Menendez brothers etc.), or even the ones that didn’t necessarily include murders, or many murders (Weather Underground, Symbionese Liberation Army, Lorena Bobbitt etc.), but given how violent the 20th century was and that the whole series is already six hours long in total, I can see why.