I took the procedural mission generator from "Welcome Aboard, Captain" and tweaked it to run murder mystery/procedural crime dramas.
There are many pitfalls running mysteries in RPG's, but I think I've "cracked the nut" to make powerful, nonlinear mystery stories where players don't have to be as smart as Sherlock Holmes or Benoit Blanc to solve them.
I'm getting ready to playtest with other players after successfully solo testing!
@lonespelunker I keep hearing about the pitfalls but in nearly 40 years of GMing mysteries, I've never found them! Mysteries are the heart and soul of RPGs for me.