Questions were asked regarding his passport, there's some info snipped from the above link:
...On September 15 he entered with a Spanish passport to the United States to spend a vacation and negotiate the publication of some of his books, according to his family members.
...After several days without knowing his whereabouts , a report of disappearance was presented to the LAPD and assistance was requested from the Consulate of Mexico in Los Angeles to try to locate him.
The consular authorities issued a bulletin that Garibay has the Mexican and Spanish nationalities , but that his official address is in Hungary, where he lives with his wife who is a citizen of that European country
...During his stay in Los Angeles, Dr. Garibay stayed at a hostel on Western Avenue, almost on the corner of Melrose , where the shared rooms cost $ 33, and the one he left on October 3.
Dr. Garibay is born in Mexico and his maternal family is originally from Cantabria, Spain. After completing his basic studies in his native country, in the second half of the 1980s he received a scholarship to study nuclear physics at the University of Debrecen, in Hungary.
He later obtained a Ph.D. in computational neuroscience at the physics school of Brandeis University, in Massachusetts, United States, before returning to Mexico and working as a professor of physics, mathematics and computer science at the Leon, Guanajuato campus of the Institute. Tecnológico y de Estudios Superiores de Monterrey (ITESM).
:thinking:
