Omniscience/Inspector

Question 1

“He knows”

Answer 1

Sheila understands the Inspector’s ​omniscience​ and thus reveals all to the Inspector, while encouraging Gerald to do the same, as “​he knows​” anyway.

Question 2

“I don’t need to know any more. Neither do you.”

Answer 2

At this point, the Inspector has revealed the ​culpability​ of the characters in Eva’s death. As this is not a ​real Inspector, there is no need to know any more details, other than a sense of guilt and ​responsibility​.