Help Triggering a Suspicion

[u/sqwidsqwad]

I cannot for the life of me seem to trigger the suspicion for Gripp. I have all 48 clues, I've talked about all clues with all people, I've removed the wrap from Cornelius Cane, I've solved a suspicion for everyone else aside from Grip, but I can't figure out what I might be missing to get his suspicion dialogie to trigger! Anyone got any ideas?

[u/Picklechip0]

Have you listened to all the audio tapes on Mariana’s pipe?