They have to go somewhere. They got run out of town where they were. Why not go where everything is FREE and their criminal record is non-existent? The land of the free and the home of the brave. Boy oh boy, aren’t we getting a good deal? They are NOT sending us the “cream of the crop”!
It rather sounds like they were charged/convicted in the US and subsequently deported (or absconded to MX) and are now coming back.