Daniel Marsh

Name: Daniel William Marsh

Victims: Oliver “Chip” Jennings Northup Jr., 87, and Claudia Maureen Maupin, 76

Age at time of murder: 15 & 11 months

Crime date: April 14, 2013

Crime location: Davis, California

Crimes: Burglary, home invasion, double murder, & corpse mutilation

Weapon: Hunting knife

Murder method: Stabbing–over 60 wounds on each victim

Murder motivation: Thrill, excitement, & enjoyment

Sentence: 52 years to life (but made eligible for parole after 25 years due to CA laws and may even be released upon turning 25 due to SB 1391)

Incarceration status: Incarcerated at the RJ Donovan Correctional Facility and eligible for parole in June 2037–may be released upon turning 25 due to SB 1391

Daniel Marsh case: Could a new California law free a teen killer convicted  as an adult for a brutal double homicide? - CBS News


Marsh invaded the home of Chip, a lawyer and WW2 veteran, and his wife Claudia. He stabbed them both to death and then disemboweled and dissected their bodies. Marsh extensively planned for the murders, wearing tape on his shoes so as to not leave footprints and wearing all black. According to the trial court, the crimes were highly sophisticated even for “the most hardened and seasoned adult criminal.” Marsh was a highly depraved and disturbed offender, with the hallmark sociopathic trait of animal cruelty deep interests in murder and gore. He murdered Chip and Claudia purely for fun. He later described the murders as giving him the most enjoyable feeling he had ever experienced, which was heightened when the victims were conscious and resisting. Marsh planned additional murders as well. He was tried as an adult and his adult sentence was upheld at a later hearing. Senate Bill 1391, which prohibits 14 and 15-year-olds from being tried as adults, was upheld by the California Supreme Court, meaning that Marsh may be released upon turning 25. Marsh’s 25th birthday is on May 14, 2022.

The murders of Claudia and Chip have retained a high profile status due to their shocking and horrifying nature. They have impacted the policy discussion surrounding juvenile offender sentencing. NOVJM asks that the rights of victims and the safety of the public be considered during any discussions regarding the sentences of teens who kill.


Claudia and Chip

The details of this murder, like many other murders committed by juveniles, are extremely graphic and disturbing. Read with caution. On the night of April 14, 2013, Marsh went on a hunt through the normally quiet Davis, CA, neighborhood Chip and Claudia resided in, with the desire to find a house with an open door or window, invade it, and then murder the occupants. Marsh brought with him a sharpened hunting knife and wore all-black clothing and a black face-mask, along with tape on his shoes so that he would not leave any footprints. He found Chip and Claudia’s house, sliced open the screen, and entered. He followed the sounds of snoring to the couple’s bedroom. Marsh, who was one month away from turning 16, entered it and stood over the sleeping couple feeling “nervous but excited and exhilarated” about his plan. He then carried out that plan and stabbed Claudia and Chip to death. After they were dead, he continued stabbing and punching them. In total, each victim suffered over 60 separate wounds. He disemboweled and dissected the couple. He placed a cell-phone in Claudia’s body cavity and a drinking glass in Chips’s body “to fuck with the people who had to investigate it.” He pulled fat out of Claudia’s leg and torso to examine it. He also cut open Chip’s forehead out of curiosity. Marsh described the murders as giving him the most enjoyable feeling he had ever experienced, which was heightened when the victims were still conscious and resisting. That good feeling, he said, lingered for weeks. Marsh later made expeditions on the streets with a baseball bat (so that these crimes would not be associated with the stabbing murders of Chip and Claudia) but could not find any victims. Marsh later bragged about the murders several times, telling his girlfriend and friend the details of the crime and how great it felt.

Marsh was a highly disturbed and twisted teen. As described by California’s Third Distinct Court of Appeals:

From seventh grade on, he shared his preoccupation with violence with his intimates, starting with a desire to kill his mother’s girlfriend for ruining his parents’ marriage. Beginning in 2012, he became preoccupied with a deviant Web site that promoted amateur videos of actual gory events, “really fucked up stuff.” He and his intimates shared an interest in serial killers such as Ted Bundy and Jeffrey Dahmer, and his physical relationship with his girlfriend included consensual violent elements, such as choking. Defendant began to talk more persistently with friends about torture and killing random people, seeming to become more vicious and drawing graphically violent pictures of killings with morbid details of the methods. Defendant additionally had the hallmark sociopathic trait of animal cruelty, which his medications helped suppress.


Marsh’s murder of Claudia and Chip was not an immature, reckless, and impulsive act made due to his under-developed teenage brain. Not only did Marsh thoroughly plan the crime, he successfully executed it–he left no DNA, footprints, fingerprints, or any other evidence. Due to his extensive planning of the crime, he almost evaded capture. Marsh was only caught because he bragged to his friends about it. As stated by the trial court, the home invasion and subsequent slayings were highly sophisticated even for “the most hardened and seasoned adult criminal.” Additionally, Marsh’s score on the psychopathy checklist was 35.8 out of 40.

The impact of the murder of Chip and Claudia on their families is explained in our amicus brief in the Jones v. Mississippi case.

Murders of Claudia Maupin and Oliver Northup (Wikipedia)

On April 14, 2013, Daniel Marsh torturedmurdered, and mutilated Oliver “Chip” Northup Jr. and his wife Claudia Maupin in the couple’s Davis, California home. Marsh, who was 15 years old at the time of the murders, had an extensive history of antisocial and violent behavior. A diagnosed psychopath, Marsh had long been fantasizing about torturing and murdering people, and desired to become a serial killer.[1][2][3][4][5][6] The high profile murders have impacted the policy debate surrounding the sentencing of juvenile offenders.[1][7]

On the night of April 13, 2013, after years of homicidal urges, Marsh “had enough” and decided to make his fantasies come true. In the early morning hours of April 14, he left his mother’s home and wandered the streets of Davis in search of a home with open windows or doors, before coming upon Maupin and Northup’s residence.[8] Marsh cut open the window screen, invaded the home, and made his way to the couple’s bedroom where he found Maupin and Northup asleep. Marsh then stabbed both victims to death. The attack was severe, leaving Northup with 61 stab wounds and Maupin with 67 stab wounds.[1] After murdering Northup and Maupin, Marsh dissected, eviscerated, and mutilated their bodies. The couple’s bodies were discovered the next day. It wouldn’t be until June that Marsh was arrested–due to Marsh’s extensive planning of the murders, he left no DNA, fingerprints, footprints, or any other evidence at the crime scene. He became a suspect after bragging to his friends about the murders. Marsh was then interrogated and confessed to the crimes. He told investigators that the murders gave him a feeling of “pure happiness” which lingered for weeks.[1][7][9][10] Marsh was convicted of the murders in September 2014. He was also declared sane.[1][11]

In 2013, the California legislature had passed Senate Bill 260, which allows juvenile offenders such as Marsh to seek parole after 20 or 25 years. Because of this law, Marsh is eligible for parole after serving 25 years of his life sentence.[7][12] In 2016, California voters passed Proposition 57, which requires that juvenile court judges decide whether juvenile offenders are tried in juvenile court or in adult court.[1] In 2018, Marsh’s conviction was conditionally reversed pursuant to Proposition 57. A transfer hearing was held to determine if he should serve his sentence in the juvenile justice system or the adult criminal justice system. Though the juvenile court judge ruled to keep Marsh in the adult criminal justice system, a new law may result in Marsh being sent to the juvenile system. Senate Bill 1391 was signed into law by Governor Jerry Brown in 2018. It prevents juveniles under age 16 from being prosecuted in adult court.[1][13][14] Opponents of SB 1391 argued that it conflicted with Proposition 57. In O.G. vs The Superior Court of Ventura County, the California Supreme Court determined that SB 1391 did not conflict with Proposition 57. Because the California Supreme Court upheld SB 1391, Marsh may be transferred to the juvenile justice system. If sent to the juvenile justice system, Marsh, now 23, may be released from incarceration upon turning 25.[3][7]

Judge rejects Marsh bid for juvenile-court resentencing

WOODLAND — Adult court remains the proper jurisdiction for Daniel William Marsh, ruled a Yolo Superior Court judge who presided over a two-week hearing to determine whether the convicted killer of an elderly Davis couple should benefit from a change in juvenile sentencing laws.

Judge Samuel McAdam’s ruling, delivered Wednesday afternoon, rejected the 21-year-old Marsh’s bid to have his case remanded to the juvenile justice system that typically paroles its offenders at age 25.

Tension gripped the packed courtroom as McAdam read aloud his 17-page decision, which concluded that the sophistication of Marsh’s crime, combined with the gravity of the slayings and Marsh’s lack of progress in seeking rehabilitation during his five years of incarceration, support the adult-court finding.

“By his own admission his main objective was to remain undetected and to become a serial killer,” McAdam said after outlining Marsh’s careful planning of the murders that left no physical evidence behind. “This was a highly sophisticated, extraordinary and rare crime even for the most hardened and seasoned adult criminal.”

Read the full ruling here: Marsh transfer ruling

Marsh’s attorneys could not be reached for comment following the ruling. They have 20 days from the decision to file a writ demanding a review of McAdam’s order.

Families relieved

An appellate-court decision granted the transfer hearing retroactively as a result of the 2016 passage of Proposition 57, which did away with the direct filing of juvenile cases in adult court, as the law allowed when Marsh was arrested at age 16. That decision now requires a judge’s ruling.

Transferred to Yolo County in July to undergo the juvenile transfer hearing, Marsh was expected to be returned Thursday to the R.J. Donovan Correctional Facility in San Diego to continue serving his sentence of 52 years to life for the April 14, 2013, mutilation stabbings of Oliver “Chip” Northup, 87; and his wife Claudia Maupin, 76.

The families of both victims rejoiced at McAdam’s ruling, reached following eight days of detailed testimony.

“It’s not about getting justice for Mom and Chip. We got that in 2014,” said Victoria Hurd, Mapuin’s daughter. “This hearing was about safety for our family and our friends and the community of Davis.”

According to Hurd, Davis citizens sent more than 300 letters to the court opposing Marsh’s remand to the juvenile justice system.

“There was an outcry, that they would not feel safe with him in the community, and rightfully so,” said Deputy District Attorney Amanda Zambor, who tried Marsh’s murder trial and led the transfer hearing four years later. “I don’t think he’ll ever be truly rehabilitated. I believe firmly that if he’s ever let out, he’ll kill again, and he’ll get away with it.”

Mary Northup, Oliver Northup’s daughter, said Proposition 57 — a measure that she supported — worked as it should.

“He got a fair hearing, the appropriate information was presented and weighed, and the decision that he should have been sent to adult criminal court was made,” she said.

Among the factors McAdam considered in reaching his decision were Marsh’s degree of criminal sophistication, capacity for rehabilitation while in juvenile court jurisdiction, prior delinquent acts, success of prior rehabilitation attempts, and the circumstances and gravity of the offense.

Though he didn’t testify at his 2014 trial, Marsh took the witness stand during this month’s hearing, offering an apology to the relatives of his victims and proclaiming himself a changed man who no longer harbors mental illness or embraces violence and hate.

“I was a really damaged, sick, screwed-up kid, so I don’t blame anybody for seeing me through that lens,” said Marsh, who claimed that childhood traumas — including physical and sexual abuse, negligent parents and suicidal and homicidal urges that went improperly treated — contributed to his offenses.

Marsh testified that individual therapy and group counseling programs in prison taught him about love and compassion. “All of these things have really changed my life, the way that I see the world, the way that I see myself,” he said.

But Yolo County prosecutors were having none of it, saying Marsh was highly calculated in planning his crime that occurred a month shy of his 16th birthday, proclaimed that it gave him an “exhilarating” feeling, and tried several times to kill again in the two months before his arrest, which came only after two friends reported to police that Marsh had bragged to them about the killings.

Prosecutors also alleged that Marsh demonstrated little interest in seeking consistent treatment until late last year, as the appellate-court ruling regarding his transfer hearing bid neared.

This aspect wasn’t lost on McAdam, who noted in his ruling that while Marsh likely did experience a traumatic childhood along with severe mental illness, “he has made no real effort at family therapy or understanding what really caused his trauma.”

“In other words, given Marsh’s emotional makeup, the effort and scope of his counseling, therapy and rehabilitation would need to match the degree of risk that he poses,” McAdam said. “It would require reflections of insight that are presently nowhere in sight.”

In light of that, “there is virtually no chance that Marsh will be rehabilitated before he turns 25 years old,” the ruling says. The state Division of Juvenile Justice “does not have any programming directed at someone like Marsh, who when he committed the murders desired to be a serial killer.”

And while a forensic child psychologist who twice evaluated Marsh over the past five years faulted Marsh’s parents for the “psychiatric emergency” he posed in the spring of 2013, “placing the blame on the mother and father really misses the point,” McAdam said. “No one is to blame for the crimes except Daniel Marsh.”

McAdam’s ruling is not the county’s last dealing with Marsh, however. Local prosecutors say his case also could be affected by Senate Bill 1391, which as of Jan. 1 amends Prop. 57 to eliminate the prosecution of 14- and 15-year-olds in adult court under any circumstances.

Gov. Jerry Brown signed the bill into law on Sept. 30 — the day before Marsh’s transfer hearing began. Yolo County District Attorney Jeff Reisig said his office plans to fight the measure, which is under appeal by the Santa Clara County District Attorney’s Office on grounds that it is unconstitutional.

Psychopathy Expert Testimony for Daniel Marsh Transfer Hearing

Daniel William Marsh’s transfer hearing resumed in Department 7 of Yolo County Superior Court today. At issue is whether Mr. Marsh should be remanded to the juvenile justice system, after being tried and convicted as an adult for the gruesome murders he committed in Davis when he was 15 years old in 2013. The attorney for the People, Deputy DA Amanda Zambor, began by calling an expert witness, Dr. Matthew Logan. Dr. Logan holds a master’s degree in education and a PhD in psychology, focusing on conflict management and crisis negotiation. He had 28 years world community police officer experience and spent two years in prisons, working with sexually violent offenders. He has written and published articles about psychopathy. Dr. Logan mentioned that he and Dr. Robert Hare, the psychologist who has written a book on psychopathy as well as several articles on the subject, are colleagues and friends. They put on the Hare PCL-R (Psychopathy Checklist-Revised) workshops, the checklist which is the international standard for the diagnosis of psychopathy in adults, as well as youths.

Dr. Logan explained that psychopaths are people who demonstrate constellation personality trait. It was considered to be a personality disorder many years ago. He also helped to clarify the difference between psychopathy and anti-social disorder. Psychopathy goes further, while most people who have psychopathy also suffer from anti-social disorder.

Dr. Logan stated that the PCL-R is the way for psychologists and therapists to determine whether the person is psychopathic, and it is not a self-assessment. PCL-R is scaled from 0 to 40. People who scored above 30 can be considered high-score psychopaths. The PCL-R checklist has 20 traits, which include glib and superficial charm, pathological lying, grandiose self worth[,] and so on. By these definitions, high-score psychopaths will not only [] tell lies because of benefit, they tell lies all the time and grab everything that has jumped into their minds. They talk a lot about themselves, the capacity of what they can do. It is ego dominant and all about themselves. They also are really good at manipulating people, even police officers, therapists and teachers.

It has been mentioned many times that psychopaths have the inability to feel remorse. They intellectually understand emotion, but they do not have the ability to feel emotion and empathy for other individuals. Based on Dr. Logan’s intense treatment experience, there was not significant improvement in such individuals. People with psychopathy and other disorders only get interested in what is happening, but they do not have emotion for others. Some of them even refused to talk about their crimes, but that does not mean the memory causes them remorse.

Psychopaths have a very high need for stimulation, which is called proneness to boredom. They are fear-deficient, and involved in activities with high-risk behavior. Many of them take drugs, seeking the higher high. Psychopaths who involved instrumental violence in their acts always plan, target, and go directly.

How is PCL-R measured, based on these traits? Clinical judgment was the answer. The therapist needs to look behind the mask, and learn how to interview so they can see the real person.

Treated individuals who were violent recidivated at a higher rate than the untreated ones. The treatment can make the high PCL-R scoring psychopath more dangerous. Dr. Logan claimed that the structure of prison is really good for the psychopath. People who scored high on the psychopathy scale can do well in the structural and contained environment, but it does not mean they will also do well with a certain amount of freedom after release.

During cross-examination, Supervising Deputy Public Defender Andrea Pelochino examined the experiences shown on Dr. Logan’s curriculum vitae. She also questioned the static and dynamic traits of the PCL-R. Many of the items can change over time. Personality depends on length of time in life and also depends on the person who measures it. So Dr. Logan usually takes two people scoring with a plus and minus 3 error rate on the same score.

By the end of this session, Judge Samuel T. McAdam focused on the question of the dynamic factor which will change over time, and whether the scores can go[] down. Dr. Logan admitted that they might be somewhat reduced. The retest should indicate the treatment effect, but there is not a whole lot of change for people who got a high score in psychopathy.

SB 1391

In 2018, Governor Brown signed SB 1391 into law. SB 1391 prohibits juveniles under 16 from being tried as adults. SB 1391 opponents argue that it conflicts with Proposition 57, which gives juvenile court judges the authority to determine if juvenile defendants are tried as adults. Proponents of SB 1391 argue that it does not conflict with Proposition 57. They also argue that barring adult prosecution of 14 and 15-year-olds is good public policy. On February 25, 2021, the California Supreme Court released a ruling on O.G. v. The Superior Court of Ventura County. They determined that SB 1391 does not conflict with Proposition 57. Because the California Supreme Court upheld SB 1391, Marsh may be released from incarceration once he turns 25. He is now over 23 1/2 years old.

Criminal Justice Legal Foundation’s description of the O.G. case

California Supreme Court case to review whether the California Legislature unconstitutionally amended the statutory provisions of Proposition 57 when it enacted Senate Bill 1391. Proposition 57 gave sole authority to juvenile court judges to decide whether a juvenile age 14 and older should be transferred to adult criminal court. Proposition 57 expressly authorized the Legislature to make amendments to the measure so long as they are “consistent with and further the intent” of the act. Senate Bill 1391 repealed a district attorney’s authority to seek a transfer of 14- and 15-year-old offenders to adult court. O.G. was 15 years old when he murdered two people. The Ventura County District Attorney’s Office sought to prosecute O.G. as an adult. O.G. objected and argued that Senate Bill 1391 prohibited the transfer. CJLF joined the case to argue that repealing a district attorney’s authority to seek the transfer of a violent and dangerous 14- or 15-year-old offender to adult court is not consistent with and does not further the intent of Proposition 57. Senate Bill 1391 significantly altered the statutory provisions of Proposition 57. The Legislature exceeded the limited authority they were given and unconstitutionally amended Proposition 57 when they enacted Senate Bill 1391.

Criminal Justice Legal Foundation brief in the O.G. case

When a majority of California voters enacted Proposition 57, they gave sole authority to juvenile court judges to decide whether a juvenile age 14 and older should be transferred to adult criminal court. Some of the most violent and horrific crimes are committed by juveniles, and they cannot be adequately handled within the juvenile court system. Voters decided that juvenile court judges are in the best position to evaluate each juvenile delinquent on a case-by-case basis and, after a full evidentiary hearing, decide if a juvenile age 14 and older should be prosecuted as an adult.

The California Constitution places strict limits on the Legislature’s ability to amend or repeal voter-enacted law without voter approval. Like many initiatives, Proposition 57 expressly authorized the Legislature to make amendments so long as they are “consistent with and further the intent” of the measure. When the Legislature enacted SB 1391 and repealed the D.A.’s authority to seek a transfer of violent and dangerous 14- and 15-year-old offenders to adult court, they disregarded the express limitation placed upon them by the electorate. Voters demanded that any legislative amendments to the act be consistent with and further the intent of the measure. Instead, SB 1391 significantly changed the statutory provisions of Proposition 57 and are therefore unconstitutional.



NOVJM amicus brief pages 12-15


Claudia Maureen Maupin