In January 1993, 51-year-old Betty Williams, a White woman, died during a violent home invasion at her Portland, Oregon, residence. The intruder, Cesar Barone, broke into her home intent on committing a sexual assault; Williams suffered a fatal heart attack during the attack and did not survive.

Police tied Williams death to a larger investigation into a string of violent crimes in the Pacific Northwest that were being investigated at the time. An accomplice in one of Barone’s other crimes provided information that led to Barone’s arrest the following month, February 1993. Investigators say Barone tried to destroy evidence by instructing a roommate to set their shared residence on fire, but authorities collected evidence linking him to Williams death and related offenses.

What details about Betty Williams life or her last day are still unclear, and can anyone who knew her or saw anything that January in Portland come forward with information?