Nirbhaya case | Punish them, but don't hang them: Convicts' kin

Speaking to ABP News, mother of one of the convicts in Nirbhaya gang rape and murder case asked that does hanging the convicts guarantee that there will not be any more rape cases in the country? 

She further added that she isn't saying that her son is not guilty. She asked that her son be punished in some other way instead of being hanged till death.