The verdict was a stunner: A jury awarded the Aguilera clan $13 million, plus $7 million in interest. The family was jubilant. Wal-Mart’s lawyer, Jaime Drabek, was flabbergasted. Seven years before that 2001 verdict, a Wal-Mart security guard had identified 31-year-old Irene Aguilera as part of a major shoplifting ring…