Why does Johnny kill Bob?

Capulet: o brother montague! give me thy hand: this is my daughter's jointure, for no more can i demand. which theme of romeo and juliet is best supported by this excerpt? tragedy is often caused by people misunderstanding each other. tragedy causes people to blame one another and drive each other apart. tragedy is often necessary in order for people to forgive one another. tragedy can cause people who are enemies to forgive each other.