Westchester County District Attorney Anthony Scarpino, Jr. announced Tuesday that Joann Perrino, a 60-year-old Yonkers resident, pleaded guilty to stealing nearly $1 million from her employer. The district attorney’s office said Perrino initiated transfers and wrote checks from her employer’s account to pay for personal expenses, including car and mortgage payments, travel expenses, spa treatments and, on one occasion, a $4,366 shopping spree on clothes.