Weldekeal-Araya is originally from Ethiopia, but has lived in Texas for a number of years. He might be a US citizen, or might be a permanent resident, reports differ, but he is definitely a resident of Texas. It would be illegal for him to drive around Texas on a Mexican drivers license, being a resident of Texas. And in Mexico, he would be an illegal alien, so there is that. If he is not a citizen, he probably does not want to travel outside the USA, so no trips to Mexico.No, Wally. They are from Mexico. He was operating on a work permit.
If he did have a Mexican CDL, he would not have been given bail.
As for the company he worked for, it is based in Houston, and he was hauling Amazon packages from a Amazon warehouse to a local distribution center, both in the USA.