 While out on parole, Duncan is known to have lived in several places in the Seattle area.He was arrested again in 1996 — this time for marijuana use — and released on parole several weeks later with new restrictions.Authorities believe that during his parole Duncan murdered Sammiejo White and Carmen Cubias in Seattle in 1996 and Anthony Martinez in Riverside County, California in 1997; however, both those cases went cold and were not tied to Duncan until after his arrest in the Groene case.