u/MulattoDePicasso

I am so confused and I am losing my mind. I am on the part of the ee at the end where you have to solve the murder and are looking for the accomplice. Every guide I've looked at just says to get 10-20 kills with the 3 rifleman traps at the courtyard, spawn, and garden. I used all the 3 traps in one round, got enough kills (got ambush all 3 times which is at least 20 kills,) yet no ghostly rifleman spawns to tell me anything. What am I missing?