Charpentier named SLC chief assistant DA Sara Charpentier (Source: St. Lawrence County District Attorney's Office) By 7 News Staff | January 11, 2021 at 11:06 AM EST - Updated January 11 at 11:07 AM CANTON, N.Y. (WWNY) - A St. Lawrence County assistant district attorney has been promoted. County District Attorney Gary Pasqua announced Monday that ADA Sara Charpentier is now his chief assistant. “Attorney Charpentier has earned this leadership position through her hard work and dedication to my Office,” Pasqua said. Charpentier is a St. Lawrence County native who was sworn into the Massachusetts State Bar in 2005. She returned to the north country in 2013 to become a prosecutor in the DA’s office.