Third person limited is the narrator only knows the thoughts and feelings of one character - narrator is not a part of the story - uses “they”, “he”, “she.” Third person omniscient is point of view where the narrator knows all the thoughts, feelings, and intentions of all characters - “all knowing” “voice of god”
This is a matter of perception. Evil inflicted for no justifiable reason is in itself evil. However, murder is evil yet in certain circumstances, one can be forced to act in an evil manner, without choice, especially when protecting yourself or a loved one
The resolution is all his plans fall apart, since that is the part that resolves the book.