NEW : `` They 're the true heroes here , and they've got to be. " Knight said she became pregnant at least five times while held captive . The source did not specify further . Ariel Castro starved and punched her until she miscarried , she told investigators . Castro intends to plead not guilty , his attorneys tell CNN affiliate WKYC .
NEW : `` They 're the true heroes here , and they've got to be. " Knight said she became pregnant at least five times while held captive . Ariel Castro starved and punched her until she miscarried , she told investigators . Castro intends to plead not guilty , his attorneys tell CNN affiliate WKYC .