MANILA — DROWNING VICTIM. Col. Tirso Gador, who played a key role in the revolt that toppled President Ferdinand Marcos, drowned Tuesday. He was blown into Manila Bay when he and six soldiers parachuted from a helicopter. Two soldiers also were blown into the water, but they survived. Gador led the first soldiers to declare support for Defense Minister Juan Ponce Enrile and military chief Fidel Ramos during the February revolution that drove Marcos to exile and installed Corazon Aquino as president.