What is the importance of Vår Frelsers Cemetery in the novel, Knife?

Vår Frelsers Cemetery is the place where Finne rapes Dagny. Both Dagny’s mother and Finne’s son are buried in this cemetery. Harry plants a wildlife camera at Valentin’s grave so that he can catch Finne there and is able to arrest him there. Later, Krohn is instructed by Finne to leave a note at Valentin’s grave informing Finne what decision that Krohn has made about Alise.