An American lawyer has been arrested in Panama after allegedly shooting two people taking part in an environmental protest Tuesday. Local media reports identified Kenneth Darlington, 77, as a Panama-born U.S. citizen. On Tuesday, he allegedly walked up to a group of protesters blocking the Pan-American Highway in the Chame District and remonstrated with the attendees. He then pulled out a pistol and—in front of a group of journalists reporting on the protest—allegedly opened fire. One victim, Abdiel Díaz Chávez, died at the scene, while another Iván Rodríguez Mendoza, was pronounced dead at a medical facility, according to TVN. Both victims were teachers, the report said, adding that Darlington has been charged with aggravated homicide and illegal possession of firearms.