The ex-husband of a Guadalupe woman found dead in San Ysidro last month was in court yesterday. Leyva Oregel was found dead in a car a few days after she was reported missing from Guadalupe this summer. German Luna Salazar was arrested over the wekeend at the U.S./mexican border. Yesterday he pleaded not guilty to murder charges. If found guilty, he faces a sentence of 25 years to life in prison.