A former assistant principal at Wylie East High School is facing new federal child exploitation charges after an earlier arrest on state charges involving alleged inappropriate relationships with minors. Federal prosecutors announced that Zachary Christian Neu, 32, of Richardson, has been indicted on two counts of enticement of a minor. Neu appeared before U.S. Magistrate Judge Aileen Durrett on June 17, according to the U.S. Attorney’s Office f…