NEW : Castro sister says he must pay for what he did . Neighbor Charles Ramsey said he heard their cries as he was sitting down to eat . NEW : Michelle Knight will deliver a statement explaining his life , the sister says . He 'll be sentenced at least 1,000 years ; the plea deal calls for life plus Thursday . One victim , Castro , will likely speak at hearing .
NEW : Castro sister says he must pay for what he did . NEW : Michelle Knight will deliver a statement explaining his life , the sister says . He 'll be sentenced at least 1,000 years ; the plea deal calls for life plus Thursday . One victim , Castro , will likely speak at hearing .