2020 has been full of surprises, but one of the more pleasant plot twists has been the unexpected arrival of Paradise Killer. At first glance, it seems like a riff on the death game, a la Danganronpa, where groups are put in situations where murder is rampant and the task is to figure out who's responsible. That "who" here includes a talking skeleton, and everything takes place on an island where folks are ritually murdered to please some cosmic gods.
I don’t know what that random guy was whining about with “no answer”. I’ll spoiler warning this anyway even though I don’t think any of this is too big:
If you really dig deep and go everywhere and solve every mystery, you’ll get every fact you need to make an answer. The question is how you apply those facts and make a final argument as to who should be guilty or not. I don’t think those questions are even all that difficult by the end.
But ultimately, if you’re lost or frustrated by things that are not clear to you yet, learn more. Keep interviewing people. Keep exploring.