Four of the suspects, identified as Pelmo Kauyan Jr., 38; Orestes Ramos, 32; Enrique Decena Jr., 31; and Gerry Briones, 28, were cornered in Dolores, Quezon early yesterday morning.
The fifth suspect, whose identity was withheld, was nabbed at a checkpoint in Tanauan City Thursday afternoon. His apprehension led to the Dolores arrests.
Superintendent Francisco Rodriguez, Tanauan police chief, said Boas telephone number was listed in the fifth suspects cell phone directory.
They also recovered from the suspect a piece of paper where the surgeons landline phone number was written.
Boa was freed by his kidnappers Thursday morning after 13 days in captivity. His family paid an undisclosed ransom.
"It took us only 24 hours after Boas release to arrest the five suspects," said Superintendent Rolando Lorenzo, provincial police director.
A witness positively identified the fifth suspect as the one roaming around the Boas poultry farm, on board a motorcycle, in several occasions prior to the abduction.
Boa and his wife, Aida, were snatched last Jan. 18 after visiting their poultry farm in San Jose town. She was later released. With Jaime Laude