NEW : Ariel Castro 's sister says he will pay for what he did . NO : Castro will deliver a statement explaining his life , the sister says . He 'll be sentenced immediately ; the plea bargain is for life plus at least 1,000 years . One victim , Michelle Knight , will likely speak at hearing .
NEW : Ariel Castro 's sister says he must pay for what he did . NEW : Castro will deliver a statement explaining his life , the sister says . He 'll be sentenced Thursday ; the plea deal calls for life plus at least 1,000 years . One victim , Michelle Knight , will likely speak at hearing .