How did Mr. Underwood, in his editorial on Tom Robinson's death, evoke the symbol of the mockingbird?

In
,mentions that Mr. Underwood wrote an editorial following the death of Tom Robinson. Mr.
Underwood believed that it was a sin to kill cripples. In the editorial, Scout says that Mr.
Underwood likened Tom's death to the senseless slaughter of songbirds by hunters and children.
Throughout the novel, mockingbirds symbolize innocent, harmless individuals who cannot defend
themselves. Whentells his children that it is a sin to kill a mockingbird, he is essentially
saying that it is wrong to harm innocent beings. Tom Robinson is a symbolic mockingbird
throughout the novel because he is an innocent person who doesn't cause harm to anyone. Tom is
also a black man, which means he has few defenses against the prejudiced community of Maycomb.
Mr. Underwood's editorial illuminates the symbolism associated with mockingbirds in the
novel.