The unidentified woman now lives in San Diego but her family resides south of the border. The same woman visited the decorated marine while he was in prison at the La Mesa Penitentiary.
Tahmooressi was arrested on March 31st after crossing into Mexico with three guns and ammo in his truck. Weapons are illegal in Mexico.
Fox 5 has also learned Tahmooressi has been in Tijuana before.
Tahmooressi came to San Diego in January to reportedly get help from the Veterans Administration for Post Traumatic Stress Disorder, but Fox 5 has yet to confirm that he has visited or made any appointments at the V.A. since arriving in San Diego.
Tahmooressi had been staying at the home of a friend and fellow marine veteran.
Congressman Duncan Hunter is now asking Secretary of Defense Chuck Hagel to stop any and all U.S. Military assistance to Mexico until Tahmooressi is released from prison.
Fox 5 has also learned Cal Trans has installed electrical signs at the border that warn people about their pending entry into Mexico. The signs also point to a U-turn area to help drivers who might be lost.
Tahmooressi has said all along that he got confused while driving on the southbound lanes at the border near the San Ysidro Border Crossing and ventured accidentally into Mexico.