SANTO DOMINGO, Dominican Republic (AP) — The parents of a U.S. college student who vanished almost two weeks ago in the resort town of Punta Cana have asked authorities to declare her legally dead. In a letter to Dominican police dated Monday, Subbarayudu and Sreedevi Konanki state that after an extensive search, local authorities believe that Sudiksha, a 20-year-old student at the University of Pittsburgh, drowned. “Initiating this process will allow our family to begin the grieving process and address matters related to her absence,” they wrote.