[2] He also welcomed Vice President Sergio Osmeña when the latter inaugurated Dipolog Airport in October 1941, who came in on board a Philippine Army Air Corps flight and almost crashed at landing.

[3] Already an elected assemblyman at the outbreak of World War II in Manila on December 7, 1941, he was captured by the Japanese and later recaptured and imprisoned by the American forces in June 1942.

During this time, he ensured that the people Zamboanga did not starve as much by conducting a food production campaign and coordinating with other Filipino guerilla-controlled areas to allow necessary supplies to flow to the peninsula.

Due to his imprisonment and continued work in harsh mountainous environments as civilian governor, Ranillo's health deteriorated rapidly.

Nevertheless, he continued on with his food production campaign and finally, his ill health led to his untimely death on December 18, 1947, at the age of 49 at Brent Hospital in Zamboanga City.