2 A search is underway in Baja California, Mexico for 60 year-old American citizen Kat Hammontre, who disappeared Thursday April 11th, in the desert near San Felipe BC.Her friends in San Diego are pleading for help from the United States. NBC 7 published the following video on Sunday, Apr 14, 2019. If you have any news that could lead to find this missing person, please contact 911 or 089 in Mexico.