After two years of this , Leigh did not come back . I do not know what became of her . Not a year goes by that I do not think of Leigh and regret the cruelty meted out to her by immature kids who were insensitive , who accorded her no dignity , and whose unkindness must have been a daily trauma for her . I was troubled then by what was done to her , and yet I was a silent member of the same pack .

Give answer the following question using evidence from the above passage: What may be the reason I feel so guilty ?
I did n't stop the abuse if the other kids .