Vampirism in the Philippines

I'm working on a novel in English which deals with vampirism in the Philippines. In the book Tabunan: The Untold Exploits of the Famed Cebuano Guerillas in World War II by Manuel F. Segura (Cebu City: MF Segura Publications, 1975), the retired colonel described the capture and death of Felixberto Lopez, who was accused as a Japanese spy (pp. 214-218). Here is the interesting part (pp. 217-218):

"On the beach at Calawisan, they took no chances on the legend that he would live again like the ubi when thrown to the ground. They dug three deep holes far apart from each other. They cut off his head, disembowelled his body, cut out his heart, his liver, kidneys and intestines and chopped them up into small pieces. They buried the head away from the body in the first hole, the torso in the next hole, and the chopped entrails in the third.

Such was the death of Felixberto Lopez, notorious Japanese undercover agent.

He was never seen alive again."

But of course, they were wrong. I'm writing a novel on vampires.

(Note: Candido Wenceslao wrote an eight-part series on the liberation of Cebu. Some parts are from Col. Segura's book.)