Manila, May 19 -- National Bureau of Investigation (NBI) Director Melvin Matibag on Tuesday defended the agency's driver-volunteer who was arrested in connection with last week's shooting incident at the Senate, saying he was not issued a firearm despite testing positive for gunpowder residue.

Matibag said videos circulating online showed Mel Oragon on the fifth floor of the GSIS building when the shooting incident happened at the adjacent Senate building.

He added that Oragon was later brought to the Senate grounds during the arrest, where the Senate's Office of the Sergeant-at-Arms (OSAA) had been firing gunshots.

"Nung nag-clearing na, bumalik siya dahil may naiwan na bag ang kasama niya. Kukuhanin niya dapat ang bag pero hindi pa s...