CAMP OLIVAS, Pampanga: Three members of the New Peoiple’s Army shot to death a security aide at the Masinloc town hall in Zambales on Monday. Central Luzon Police Regional Director Chief Supt. Raul Petrasanta identified the victim as Antonio Estella, 64, of Purok Yakal II, Barangay Baloganon. Investigation showed Estella was eating lunch at an eatery along National Highway when the suspects arrived and shot him at the back. Witnesses said the suspects walked casually after the shooting. Police recovered four spent shells of a cal .45 and two slugs.