Garza has occupied several positions in the Tamaulipas public service.
Assassination attempt
In February 2007 Garza was shot[2] and critically wounded by unknown individuals as he was going to the Quetzalcóatl International Airport to take a flight back to Mexico City. Garza's driver was shot to death. Garza was rushed to a hospital in Nuevo Laredo and then to a hospital in Mexico City.