Manila, Oct. 14 -- Authorities have beefed up security in the city following the ambush-slay of an employee of the Ministry of Basic, Higher and Technical Education in the Bangsamoro Autonomous Region in Muslim Mindanao (MBHTE-BARMM) by still unidentified gunmen Sunday evening. "Police visibility and checkpoints were immediately established in strategic sections of the city," said Col. Portia Manalad, city police director, in a statement. Major Rustom Pastolero, city police station 2 chief, identified the victim as Mingko Marohom Ebrahim, 32, an employee of MBHTE-BARMM and a resident of Barangay Rosary Heights 7, this city. Investigation showed that Ebrahim was driving his motorbike along Gonzalo Javier Street, Rosary Heights 7 at about 8:2...