A devastating mass shooting occurred in the Mexican state of Guanajuato, claiming the lives of at least 12 people. The attack took place in the city of Irapuato, where gunmen opened fire on a street celebration honoring St. John the Baptist. A devastating mass shooting occurred in the Mexican state of Guanajuato, claiming the lives of at least 12 people. The attack took place in the city of Irapuato, where gunmen opened fire on a street celebration honoring St. John the Baptist.