The death of a Princeton University student who went missing in October has been ruled a suicide. The autopsy report on Misrach Ewunetie, conducted by the Middlesex Regional Medical Examiner’s Office, determined the 20-year-old died from “Bupropion, Escitalopram and Hydroxyzine Toxicity,” according to a press release from the Mercer County Prosecutor’s Office. Ewunetie was last seen on Oct. 14 near …