 A new allegation of sexual assault has been lodged against a former fifth-grade teacher in Stanford. The new charge means that 13 students have now come forward and accused Andrew Park of inappropriately touching them. The 33-year-old Park, who is a Norwalk resident, was a teacher at Strawberry Hill School when the alleged sex crimes happened. Park was arraigned yesterday on the new charges of fourth-degree sexual assault, risk of injury to a minor, and illegal sexual contact with a child.