In Calaveras County, Ng was indicted on twelve counts of first-degree murder. After a change of venue to
Orange County, he initiated a protracted series of pretrial motions. He sued the state over his temporary detainment at
Folsom Prison, where he was caught hiding maps, fake IDs, and other escape paraphernalia, and filed challenges against four of the judges assigned to his case. He lodged a long series of complaints regarding the strength of his eyeglasses, the temperature of his food, and his right to practice
origami in his jail cell. By September 1998, Fitzgerald would himself be succeeded by Judge John J. Ryan, who would serve as the presiding judge of the trial. Ng's trial began with primary jury selection on September 14, 1998. Opening arguments began on October 26. The trial would last four months, ending on February 24, 1999. Balazs cooperated with investigators and received
legal immunity from prosecution. Court records stated that Balazs turned over weapons and other material to authorities during the investigation. Balazs was called a key witness in Ng's trial, but Ng's lawyer, William Kelley, in a surprise move, dismissed Balazs without asking any questions. Balazs was expected to shed light on what happened inside the mountain cabin that her parents owned. Kelley later declined to explain his actions. The prosecution rested its case on November 17, 1998. The defense began its case on November 30. Despite the video evidence and information in Lake's voluminous diaries, Ng maintained that he was merely an observer and that Lake planned and committed all of the kidnappings, rapes, and murders unassisted.
Psychiatrist Stuart Grassian testified that Ng had
dependent personality disorder, but admitted under
cross-examination that he had not viewed the tapes that showed Ng participating in the crimes. Clinical
psychologist Abraham Nievod agreed with the diagnosis of dependent personality disorder and opined that Ng's behavior in the tapes indicated that he was attempting to "mirror" and please Lake. Four correctional officers, two sheriff's deputies, a prison library employee, and a prison counselor all testified that Ng was a model prisoner. Four former Marines who had known Ng while serving in the Marine Corps testified that he was quiet and well-behaved. Ng's parents testified about his troubled childhood and expressed remorse for their son's actions. At one point during the trial, Ng somehow managed to obtain the phone number of one of the nine female jurors. He contacted the juror at home in an unsuccessful attempt to cause a mistrial, after which the phone number was found in his cell. Thereafter, he was kept in a metal cage within a room during recesses. The defense initially concluded its case on January 25, 1999. The following day, Judge Ryan granted Ng's request to reopen the defense portion of the trial to allow him to testify about the murders. Ng took the stand for the first time that day, blaming the murders on Leonard Lake, who he said was responsible for all of them. On February 2, prosecutors declined to ask further questions of Ng, and re-summarized the closing arguments they had given jurors the week before. On February 3, the defense made its closing arguments. On February 8, the jury began its deliberations. After three weeks of deliberations, the jury returned its verdict on February 24, 1999, convicting Ng Jurors found him not guilty on the twelfth charge, the murder of Paul Cosner, even though Lake and Ng had driven Cosner's car for seven months since he went missing in November 1984, and Cosner's California driver's license had been found at the Wilseyville property. Ng was sentenced to death, and Judge John J. Ryan rejected a motion to reduce the sentence to life imprisonment, saying, "Mr. Ng was not under any duress, nor does the evidence support that he was under the domination of Leonard Lake." far exceeding that of the
O.J. Simpson trial in 1994–1995, which cost $9 million. On July 28, 2022, the
California Supreme Court upheld Ng's death sentence and conviction. As of 2022, Ng still has other possible federal appeals in spite of a moratorium on the death penalty by Governor
Gavin Newsom. As of 2025, Ng remains on
death row at
California Medical Facility. No executions have taken place in California
since 2006. == See also ==