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A Philippine newspaper, the Manila Bulletin, says the bus driver involved in Monday's deadly hijack is suspected by police as the gunman's accomplice.
During the subsequent investigation of the incident, police say, they have MANY questions about Alberto Lubang's evidence.
During questioning, Lubang is said to have appeared incredibly relaxed, and his testimony of breaking handcuffs with his nails is considered absurd by authorities.
The gunman's brother, Gregorio Mendoza, is considered as another suspect.