Mrs. Arroyo arrived here yesterday as she graced the 36th founding anniversary of Davao del Norte and Davao Oriental.
The President also directed the military to work with the local government units and the police in Monkayo to enforce law and order in the area.
The lone assassin, Anecito Dejeto Sr., was reportedly offered P1 million by the mastermind, who is believed to be also involved in the mining industry at the Mt. Diwalwal gold rush area.
Dejeto, who was a member of the barangay police in Sto. Tomas, Davao del Norte, was himself killed immediately after he shot Brilliantes twice in the head inside the Martina Gallera cockpit here.
Criminal Investigation and Detection Group (CIDG) head Chief Supt. Eduardo Matillano disclosed to reporters the monetary offer in exchange for the mission to kill Brilliantes.