The Question and Answer section for Citizen Kane is a great resource to ask questions, find answers, and discuss the novel.
Kane and Emily's marriage is cold and empty. Emily has no interest in her husband's work or political aspirations. Emily leaves her husband shortly before her death. Kane and Emily's son dies in the car accident alongside his mother.
Citizen Kane is all about continuity. The film's plot is circular rather than linear. Each successive story about Charles Foster Kane flows into the next one giving the viewer perspective on his life never attempted in cinema before.
We only meet the butler near the end of the movie. Hecares little for his former employer and is eager to answer questions about him for money.