Death of Jane

This book talks about a young lady who has been harassed by a black man. It talks about a short white lady with blond hair. The lady complained about her harassment to the police. And later on after the harassment, the same man came back at Mary's apartment to see his girlfriend, Jane, who was a prostitute.
She was not a good prostitute because she was not earning a lot. She was found with another man by John, and he killed her. Mary was one of the witnesses. John asked one of his friends to capture Mary. The police was aware of the story and found John and the man who kidnapped Mary. Mary was released and freed. There was happiness for her and her family. John and Tom were in jail.