Rita knows the answers to the questions about gun violence and courtroom reactions after reading chapters one through four of 'Boys' by Jewel Parker Road, but doesn't know the answers to questions about the judge's emotions or Kim's addition to the news.
After reading chapters one through four of 'Boys' by Jewel Parker Road, Rita would be able to answer the questions: 'Will the decision of the judge cause less or more gun violence in the city?' and 'How did the people in the courtroom react to the news the judge gave?'
The book does not provide information about the judge's emotions or Kim's addition to the news, so Rita would not have the answers to those questions.