Alright, so how exactly did Dammers know ...
... that Frank and Lucy were going to the chapel?
Between the graveyard scene and his sudden appearance at the chapel, he's had no contact with either character, so it isn't as if he overheard them talking about going there. Was there supposed to be a scene that explained this that was deleted or left unfilmed for some reason?
I'm Laura Bertram's husband in another universe.