Describe Kumalo's brother.

John Kumalo is the brother of Stephen Kumalo, he is a former carpenter who has become a great political leader in Johannesburg primarily because of his charisma and speaking abilities. Unlike his brother, John Kumalo has forsaken the church and now lives a largely immoral life, having divorced his wife and taken up with a mistress. John Kumalo's son (Matthew) is also responsible in the murder of Arthur Jarvis, but because there is no tangible evidence he betrays Absalom and is acquitted for the murder.