Could you possibly answer these questions ?
book - to kill a mockingbird

Atticus is fighting a case case for Tom Robbinson the so called 'mockingbird' he is speaking of is Tom and it is a sin to kill an innocent man as Tom did not r'pe Mayella Ewell.

the symbol of the grandfather's heritage in this excerpt from "the medicine bag,” is the beaded bolo tie.

a bolo tie is a cord fastened around the neck with an ornamental clasp which is worn as a necktie. they have been used by native american tribes such as hopi, navajo, zuni, and puebloans since the mid-20th century.

therefore, the fact that the grandfather is wearing a bolo tie refers to his heritage as native american.