Authorities in Pennsylvania arrested a suspect in the killings of four University of Idaho students who were found stabbed to death in their beds more than a month ago, local Police Chief James Fry said Friday. Bryan Christopher Kohberger, 28, was arrested early Friday morning by the Pennsylvania State Police at a home in Chestnuthill Township, authorities said. “We are still looking for the weapon,” Fry said. “I will say that we have found an Elantra.”