DCPO forms Task Group-Castillones to investigate killing of ex-politician and businessman Giselo Velasco Castillones | Davao City Police Office launches thorough investigation and reviews CCTV footage | SITG-Castillones deployed to Cateel for on-ground investigation | Victim's common-law wife reveals purpose of visit to Davao City | Profile information of possible hired perpetrators released by Bajada Police Station