HERE: Commissaire Fichet steps into the room as the two murderers are getting ready to leave, to deliver his ironic line about how many years in prison they might expect. He knew Mme. Delasalle had a heart condition, and it seems he figured out that M. Delasalle was not dead. Didn't he realize that their plan was to frighten her to death? If so, he could have entered five minutes previous and saved her life. But then he could only have arrested the couple for conspiracy to murder ... the smug little prick.