US Police Officer Accused of Killing Three People in Mexico Arrested at Border

A U.S. police officer accused of killing three people in Mexico was arrested as he tried to cross back into the United States, authorities said. Investigators allege the killings occurred during an incident in Mexico, where the officer was believed to be involved in a violent confrontation. After learning that he was attempting to return, Mexican and U.S. authorities coordinated to locate and detain him at a border crossing. He is expected to face charges related to the deaths in Mexico, while a U.S. investigation may also proceed depending on evidence.