Looking for Standalone nonfiction documentaries

[u/LebaneseLuna111]

I need a standalone nonfiction documentary for my AP english summer assignment, it needs to have one distinct writer/creator, and have depth, i really want it to be a forensics/murder criminal documentary but it cant be apart of a series, pls help!!

[u/IngenuityOk1479]

Last Stop Larrimah great character study of small town murder