On the evening of July 3, 1991, 29-year-old Li Yang Yuan was found dead in the studio apartment she shared with her husband at Jefferson Plaza, 1515 SW Jefferson Street in Portland. Earlier that morning she had been seen leaving the building and by night her body had been discovered, giving investigators only hours to reconstruct her movements that day.

Li had come from China on a visitor’s visa and was building a life in Portland. She worked at The Mandarin Cove restaurant on SW Columbia Street and at a Chinese herb shop on 82nd Avenue, and had previously taught English at a university in China. Detectives investigated her relationships, including reports of romantic involvements outside her marriage, and appealed for witnesses. The Cold Case Homicide Unit later handled the file and Crime Stoppers publicized a reward.

There have been no arrests; the suspect remains unknown and the case is unsolved. Did anyone who knew Li or who was in the Jefferson Plaza area on July 3, 1991, see or hear anything that could help identify what happened?