For one, his father, a vice president of a company that makes conveyor products, is half Mexican. Additionally, two individuals who knew him during his teenage years describe a lone wolf who was highly intelligent but also abrasive and condescending. Raised in La Grange Park, an upper-middle-class suburb of Chicago, he and his twin sister excelled in high school speech contests. A classmate recalls that as they began their senior year in the fall of 2015, Mr. Fuentes was an ardent supporter of the Republican presidential candidate Ted Cruz, with views very much in the mainstream of conservative politics.

(http://www.autoadmit.com/thread.php?thread_id=5772351&forum_id=2#49254427)