MANILA — Universities, environmental organizations and scientific groups called for a swift and transparent investigation into the killing of American marine biologist Kent Carpenter, as Philippine police announced arrests in the case and said investigators believe the attack was a robbery rather than one connected to his research.
Carpenter, 73, was fatally shot at his home in Sibulan, Negros Oriental, on July 12 after armed intruders forced their way into the residence. Authorities said the attackers stole cash, a laptop and other belongings. Carpenter's Filipino companion survived the attack and has been assisting investigators. Police are also investigating allegations that she was sexually assaulted during the home invasion.
On Thursday, the Philippine National Police said three suspects had been arrested, including one who allegedly surrendered and provided information that helped investigators identify the others. Police spokesperson Col. Allen Rae Co said investigators believe the crime was a planned robbery and that available evidence does not indicate Carpenter was targeted because of his scientific work. Authorities said one suspect had previously performed carpentry work at Carpenter's residence. A fourth suspect remained at large.
The killing prompted tributes and demands for justice from universities, conservation advocates and environmental organizations that worked with Carpenter over several decades. Groups including Protect Verde Island Passage, the University of the Philippines Marine Science Institute and other academic institutions urged authorities to conduct a thorough investigation and ensure accountability for those responsible.
Carpenter, a professor emeritus at Old Dominion University and longtime research associate at Silliman University, spent much of his career studying marine biodiversity in the Philippines. His research helped establish the Verde Island Passage as one of the world's richest centers of marine shorefish biodiversity and informed conservation efforts across the Coral Triangle. He also contributed scientific testimony during the Philippines' international arbitration case over the South China Sea by documenting environmental damage to coral reefs.
Old Dominion University, Silliman University and several conservation organizations described Carpenter as a leading marine scientist whose work influenced global biodiversity research and marine protection.
Police said robbery with homicide charges are being prepared against the arrested suspects while investigators continue searching for the remaining suspect and gathering forensic evidence related to the attack. Authorities said the investigation remains ongoing.
