Manila, July 11 -- The death toll in the ambush perpetrated by still unidentified gunmen Wednesday afternoon here rose to four with three of the victims expiring one after another at a hospital, police said. An updated report of the Criminal Investigation and Detection Group (CIDG)-Maguindanao identified the fatalities as Datu Norodin Mangandian Guiaman, 34, chairperson of Barangay Tuka, Mamasapano, Maguindanao; Tuka barangay treasurer Sindatu Agao, Barangay Peacekeeping Action Team (BPAT) member Basser Guiaman, 42; and Alwaida Guiaman, 28, wife of chairman Guiaman. Col. Portia Manalad, city police director, earlier reported that Basser Guiaman died on the spot following the incident. However, couple Norodin and Alawaida Guiaman, and Agao e...