PROVIDENCE, R.I. (WLNE) – A Bristol woman has been sentenced to 35 years in prison for murdering her boyfriend’s 62-year-old grandmother in 2017. Selena Martinez, 28, murdered Eudora Gustafson in her Sowams Drive home by asphyxiation before robbing her to obtain money for drugs, according to Attorney General Peter F. Neronha’s office.