What happens to Bob Ewell in this chapter and who does he blame for this?

In this chapter, Bob Ewell, the antagonist in Harper Lee's novel "To Kill a Mockingbird," meets a tragic end. Bob Ewell attempts to harm Jem and Scout Finch as a form of revenge against their father, Atticus, who had defended Tom Robinson in court. However, Boo Radley intervenes and saves the children from Bob Ewell's attack. In the struggle, Bob Ewell is killed, with Boo Radley delivering the fatal blow.

Since Bob Ewell dies in this incident, he cannot directly blame anyone for his fate. However, indirectly, he can be seen as blaming Atticus Finch for defending Tom Robinson. By attempting to harm Atticus' children, Bob Ewell is seeking vengeance against Atticus for making him look foolish during the trial and ruining his reputation.