MANILA- The security guard who lost his entire family in a massacre that took place in their Bulacan home is now applying for the Department of Justice's Witness Protection Program (WPP).

Dexter Carlos Sr. met with Justice Secretary Vitaliano Aguirre II Thursday after the justice chief reached out to him to offer any form of assistance the department may extend.

LOOK: Dexter Carlos, Sr. processes application for DOJ Witness Protection Coverage pic.twitter.com/FKPEPKE1Wq

— Ina Reformina (@InaReformina) July 6, 2017

Carlos' wife Estrella, 28, her mother Aurora, 58, and the Carlos couple's children-- 11-year-old Donnie, 7-year-old Ella, and 1-year-old Dexter Jr.-- were stabbed to death inside the family's residence in San Jose Del Monte, Bulacan on June 27.

The DOJ ordered the National Bureau of Investigation (NBI), one of its attached agencies, to investigate the killings, and offered Dexter its protection as well as legal assistance.

The police has in custody 26-year old Carmelino "Miling" Ibañez, who had earlier owned up to the killings, but later recanted on claims he was tortured by police.

Two persons of interest, Roosebelt Sorima, alias "Ponga," and Ronaldo Pacinos, alias "Inggo," have been found dead.