I found some info about Juan Martinez' background. He is just so inspiring to me.
"...
Martinez's own story is inspiring: The seventh of eight children born to illiterate Mexican farmworkers, he immigrated to California when he was 6. He says he resolved as a youngster to learn English: "The people around me who were successful spoke and read English well. You didn't get far if you couldn't do that."
He managed a drugstore after earning his undergraduate degree, then entered law school. He finished law school at Arizona State University, worked for Community Legal Services helping tenants for a few years, did some defense work, then joined the Maricopa County Attorney's Office in 1988.
...and still looks like the distance runner he used to be in the high desert of rural Victorville, California."
LINK