Consuelo was last seen in Lacey, Washington on April 25, 1993. At the time of her disappearance, she lived with her husband, Mark Vannausdle, and their two young children in a residence on 25th Avenue off College Street. She has never been heard from again. Consuelo kept in close contact with family members in California and the Philippines prior to her disappearance, and was a devoted mother to her children. It is uncharacteristic of her to leave without warning.

Mark never reported his wife's disappearance to police. Consuelo's sister in California reported her as a missing person on July 2, 1993, after she was unable to get in touch with her by telephone. When questioned, Mark claimed Consuelo had simply walked away from their home and never returned.

Authorities believe Consuelo was the victim of a homicide. She moved from the Philippines to the United States in 1987 and lived in Spain and in the American states of Delaware and Idaho prior to moving to Washington state in 1992. No one has been ruled out as a suspect in her case, and her husband is considered a person of interest. He is currently incarcerated for shooting a cab driver and stealing the victim's cab. When he was arrested in that case in 2002, police found a 1993-era map of the area in the cab as well as other "suspicious" items. Mark has not been charged in his wife's case, however.

Consuelo's disappearance remains unsolved. Some agencies give her date of disappearance as May 1, 1993.