Espino also said that he offered his condolences to the family of the victims and wished for the speedy recovery of those who were wounded.
Police Officer 2 Domino Alipio shot dead three people, including a teacher, and wounded four others after Alipio reportedly ran amuck.
Senior Superintendent Reynaldo Biay, Pangasinan Police Provincial Office officer-in-charge, said Alipio went to the school to collect payment from one of the victims who owed him.
The police seized a .45 caliber handgun and a folded carbine from Alipio who is currently under the custody of the Lingayen police.
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