A Moscow police officer stands guard in his vehicle, Tuesday, Nov. 29, 2022, at the home where four University of Idaho students were found dead on Nov. 13, 2022 in Moscow, Idaho. The university will be holding a system-wide vigil on Wednesday evening, Nov. 30, 2022, in memory of the students, as investigators continue to look for a suspect and motive in the killings. (AP Photo/Ted S. Warren)