Tax preparer tells jury she made 'mistakes' BY ERINN TAYLOR Times staff writer A Laredo tax preparer accused of assisting in the preparation of fraudulent tax returns continued her second day of testimony Thursday, telling the jury she made "mistakes" while preparing tax returns but "they were not intentional." U.S. District Judge Keith P. Ellison reminded Sandra Luz Castro she was still under oath as she took the witness stand. Castro is accused of falsifying tax return information for a total of more than $1.1 million in fictitious claims. Jurors listened as Assistant U.S. Attorney Arthur Jones questioned Castro about...