RIVERSIDE (CNS) - A felon accused of gunning down a man during a confrontation in Moreno Valley pleaded not guilty today to murder and other offenses.David Diaz, 38, of Los Angeles, was arrested last month following a Riverside County Sheriff's Department investigation into the slaying of 44-year-old Giovanni Ibarra.Along with the murder count, Diaz is charged with firearm assault and sentence-enhancing gun and great bodily injury allegations.The defendant was arraigned before Superior Court Judge Gail O'Rane, who scheduled a felony settlement conference for Aug. 18 at the Riverside Hall of Justice.Diaz is being held in lieu of $1 million bail at the Robert Presley Jail in Riverside.According to sheriff's Sgt. Steve Brosche, about 2:30 a.m. April 23, Diaz and the victim
