If you have been the victim of identity theft, you should promptly report this to law enforcement as well as the Solicitor's Office. This may involve both local police/sherrif and Federal authorities since the person who presented them was apparently from another state. Your bank should have a department that deals with fraud, and this should also be reported to them. You may not be liable for forged endorsements if your bank negligently paid these items, and you may be able to recover sums removed from your account.
You will need to consult an attorney to get more information about potential civil claims you may have against your bank. If you cannot afford one, contact the South Carolina Bar Lawyer Referral Service or your local legal aid clinic.
This response does not create an attorney client relationship, and is for general information purposes only. You should promptly contact an attorney in your area to ascertain your legal rights.