Maria went on a vacation to Mexico with her husband and three children on 06-13-1990. They left their oldest son behind. Maria called her son on 06-23-1990 and stated the family was leaving Guadalajara, Mexico and heading to Manzanillo, Colima, Mexico. The husband and three children returned home on 06-28-1990. Maria's husband stated he was involved in an argument with Maria and she stormed off, never to be seen again. (Information retrieved from NamUs.gov)