People v. Jantz

40 Cal. Rptr. 3d 875, 137 Cal. App. 4th 1283, 2006 Cal. Daily Op. Serv. 2555, 2006 Daily Journal DAR 3642, 2006 Cal. App. LEXIS 413
CourtCalifornia Court of Appeal
DecidedMarch 27, 2006
DocketB175147
StatusPublished
Cited by47 cases

This text of 40 Cal. Rptr. 3d 875 (People v. Jantz) is published on Counsel Stack Legal Research, covering California Court of Appeal primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
People v. Jantz, 40 Cal. Rptr. 3d 875, 137 Cal. App. 4th 1283, 2006 Cal. Daily Op. Serv. 2555, 2006 Daily Journal DAR 3642, 2006 Cal. App. LEXIS 413 (Cal. Ct. App. 2006).

Opinion

*1287 Opinion

PERREN, J.

Roger Wayne Jantz was convicted of first degree murder (Pen. Code, §§ 187, 189), 1 stalking (§ 646.9, subd. (a)), and making a criminal threat (§ 422). In a bifurcated sanity trial, the jury found that Jantz was sane when he committed the offenses. He was sentenced to prison for 25 years to life for the murder, plus three years for stalking and one year for personal use of a deadly and dangerous weapon in the murder. (§ 12022, subd. (b)(1).) Jantz claims instructional error. He contends the trial court erred by instructing the jury on murder by lying in wait, failing to give a unanimity instruction for the stalking and criminal threat offenses, and failing to instruct the jury that his statements to experts during the sanity trial could be considered to show the basis for the experts’ opinions but not for their truth. We conclude that the trial court erred by failing to give a limiting instruction regarding his statements to the experts, but that the error was not prejudicial. We reject Jantz’s other contentions. Accordingly, we affirm.

FACTS

Appellant Jantz and victim Erika Jantz 2 were married in 1994. In March 2002, Erica told Jantz that she wanted a divorce. Jantz became upset, jealous and depressed. He told his mother and friends that he loved his wife and wanted to make the marriage work. He continued to reside with Erika but was looking for a new place to live.

Erika, an emergency room nurse, told coworkers that Jantz followed her wherever she went and, on April 10, 2002, physically assaulted her by throwing her down on the bed and threatening to rape her if she did not let him have sex with her. On April 11, 2002, Erika told coworker Lisa Hall that Jantz told her “he was going to kill himself and that he was going to take her with him.” Erika told other coworkers words to the effect that, if anything happened to her, Jantz did it.

Erika and Jantz’s 10- or 11-year-old son T. heard his parents arguing about their divorce on April 12 or April 13. Jantz accused Erika of not trying to make the marriage work, but Erika got Jantz “calmed down pretty good.” Jantz told T. that, if his parents divorced, T. would live with his mother and see Jantz on weekends.

*1288 On April 13, Jantz visited friends. He seemed upset, depressed and sad because Erika wanted a divorce. He said he wished the situation could be better and was hopeful things would work out and the marriage could be saved. He said he had broken a window in Erika’s car, but had arranged to have it repaired.

On the evening of April 13, Erika went on a date with coworker Richard Dykhouse, and stayed with Dykhouse until the following morning. Jantz made several unanswered calls to Erika’s cell phone during the night. At approximately 4:49 a.m. on April 14, Erika telephoned Jantz at their home, and they spoke for between two and three minutes. Shortly after 5:00 a.m., Jantz telephoned his mother. He was crying and told his mother that Erika had slept with another man and wanted to talk when she got home. Jantz told his mother that he was burning Erika’s lingerie in the barbeque.

At 6:00 a.m., Jantz told T. that Erika had cheated on him, and that T. should pack his clothes because he was going to his grandmother’s house. Approximately 30 minutes later, Jantz’s mother arrived to pick up T. Jantz appeared calm, but acted like he had his mind set on something. Later, Jantz telephoned his mother and told her that he was resigned to the end of his marriage. He said he could not go to his mother’s house because Erika wanted to talk to him when she got home to make arrangements for the divorce.

Erika left Dykhouse at 9:00 a.m. and drove to her house, approximately 65 miles away. Between 9:00 and 9:30 a.m., she made three cell phone calls to Jantz. The first and second calls lasted 13 and 24 seconds, respectively, and the third call lasted over two and one-half minutes.

Erika’s body was discovered on her kitchen floor at 2:30 p.m., April 14, 2002. She had been hit in the head with a frying pan and stabbed in the neck with a knife. Several bloody kitchen knives and the frying pan were found in the house. Knife wounds had severed Erika’s jugular vein and carotid artery and penetrated the surface of her cervical vertebra. There were stab wounds to her abdomen, a broken forearm bone, and other injuries, including defensive wounds indicating a struggle had occurred.

Jantz was found unconscious and snoring on the living room floor. He had several self-inflicted wounds to his body.

The police also found rope tied to the bed, and a baseball bat, hammer, and knife near or under the bed. More rope was found in the bedroom and in the living room under the sofa seat cushion. Bloody rope was found in the hallway.

*1289 At trial, Jantz pleaded not guilty and not guilty by reason of insanity. The trial was bifurcated with the sanity phase following the verdict in the guilt phase.

In the sanity phase, defense psychiatrist Ronald Shlenski testified that Jantz told him that Jantz remembered hitting Erika with the frying pan, but did not remember using a knife to kill her. Dr. Shlenski testified that, in his opinion, Jantz suffered from schizophrenia and was insane at the time of the killing. Dr. Shlenski testified that Jantz understood right from wrong and the nature and consequences of his acts when he hit Erika with a pan and when he inflicted wounds on himself after the murder, but not during the few minutes when he was stabbing Erika.

Defense expert Dr. Gary Groth-Mamat also diagnosed Jantz with schizophrenia and testified that his ability to act in a knowing way was probably impaired at the time of the murder, and it would have been difficult for Jantz to distinguish right from wrong at that time. Dr. Groth-Mamat testified that some testing indicated that Jantz may have been malingering and attempting to feign mental illness.

Court-appointed forensic psychologist Dean Given testified that Jantz was sane at the time of the murder because he understood the nature of his actions and knew the difference between right and wrong. Dr. Given testified that Jantz told him that he had lost control when he hit Erika with a pan and then stabbed her. Jantz told Dr. Given that he knew right from wrong when he killed Erika and that, when he realized what he had done, he tried to kill himself.

Prosecution expert Dr. James Tahmisian testified that Jantz did not suffer from schizophrenia or any other mental disorder or defect at the time of the murder that would render him unable to understand the nature and quality of his acts, or the difference between right and wrong. Dr. Tahmisian testified that Jantz told him that he understood right from wrong at the time he killed Erika, and that test results indicated that Jantz was malingering during his evaluation.

Prosecution expert Dr. John Rivard testified that Jantz was not psychotic at the time of the murder and knew right from wrong as well as the nature and quality of his acts. Dr.

Free access — add to your briefcase to read the full text and ask questions with AI

Related

People v. Esquivel CA3
California Court of Appeal, 2026
People v. Sandoval CA2/4
California Court of Appeal, 2025
People v. O'Neil CA3
California Court of Appeal, 2025
People v. Woodward CA3
California Court of Appeal, 2025
People v. Manor CA3
California Court of Appeal, 2025
People v. Luevano CA2/7
California Court of Appeal, 2025
People v. Ordonez CA5
California Court of Appeal, 2025
People v. Studnicka CA2/1
California Court of Appeal, 2025
People v. Prokopowicz CA1/1
California Court of Appeal, 2025
People v. Sims-Cruz CA3
California Court of Appeal, 2024
People v. Barner
California Court of Appeal, 2024
People v. Gonzalez CA3
California Court of Appeal, 2023
People v. Timmons CA1/2
California Court of Appeal, 2023
(HC) Tapia v. Cisneros
S.D. California, 2023
People v. Ambrocio-Garcia CA1/3
California Court of Appeal, 2023
People v. Burge CA6
California Court of Appeal, 2022
In re Sirypangno CA4/1
California Court of Appeal, 2021
People v. Mumin
California Court of Appeal, 2021
People v. Thomas
California Court of Appeal, 2021
People v. Tapia CA4/1
California Court of Appeal, 2021

Cite This Page — Counsel Stack

Bluebook (online)
40 Cal. Rptr. 3d 875, 137 Cal. App. 4th 1283, 2006 Cal. Daily Op. Serv. 2555, 2006 Daily Journal DAR 3642, 2006 Cal. App. LEXIS 413, Counsel Stack Legal Research, https://law.counselstack.com/opinion/people-v-jantz-calctapp-2006.