A man, accused of murdering a 14 year-old girl nearly 30 years ago in Castroville, has pleaded not guilty. Arsenio Leyva made his first appearance in a Monterey county court room today, in connection with the 1990 killing of Christy Pina, who’s body was found in a Castroville artichoke field. Leyva’s bail hearing is set for Thursday and a pre-trial hearing is scheduled for July 3rd.