All three pleaded not guilty Monday in a hearing in the jail courtroom in Santa Ana and were ordered to return to court Jan. 4 for a pretrial hearing in the West Justice Center in Westminster. Nava-Ayala is charged with three counts of attempted murder, three counts of assault with an assault weapon and a count of shooting into an occupied building. He also faces sentencing enhancements for attempted premeditated murder, the personal use of an assault weapon and causing great bodily injury. He could face up to 82 years to life in prison if convicted at trial. Ocampo Nava is also charged with three counts of attempted murder, three counts of assault with an assault weapon and one count of shooting into an occupied building. He also faces sentencing enhancements for attempted premeditated murder and supplying a firearm for the commission of a felony. He faces up to 21 years to life in prison if convicted at trial.