Mason Clarke faces second-degree murder, while Samantha Neiber is accused of assisting during the fatal confrontation with her mother.
OMAHA, Neb. — A judge denied bond for a man accused of killing his girlfriend’s mother during a family gathering, while setting a $500,000 bond for the victim’s daughter, who authorities say restrained her mother as the confrontation became fatal.
Mason Clarke, 30, faces second-degree murder and child abuse by neglect without injury in the death of Jennifer Neiber, 57. Samantha Neiber, 25, faces charges of accessory to a Class I felony and child abuse by neglect without injury. A judge ordered that Samantha Neiber could be released by posting 10% of her bond, according to local reporting. The defendants remain presumed innocent, and the allegations must be proved in court.
The different charges reflect the roles described by the Douglas County Sheriff’s Office. Investigators allege Clarke put a sock into Jennifer Neiber’s mouth during a physical struggle. They allege Samantha Neiber held her mother’s wrists against the floor. The agency said Jennifer Neiber died at the scene. It has not released a full medical report or all of the evidence used to support the arrests.
A second-degree murder prosecution will require more than proof that Clarke was present when Jennifer Neiber died. Prosecutors must establish the conduct and intent required by Nebraska law and connect that conduct to the death. Public accounts have described the alleged physical act, but they do not yet provide the complete medical, forensic and testimonial record that would be presented in court.
The accessory charge against Samantha Neiber raises a separate set of questions. Authorities say she physically restrained her mother, but the precise legal theory behind the filed count has not been fully explained in the reports reviewed. Prosecutors will need to show that her alleged actions satisfy the elements of the offense charged. Defense attorneys may dispute what she did, what she understood or how her conduct should be classified.
The case began at a barbecue hosted by Clarke and Samantha Neiber at their Elkhorn residence Saturday, June 13. Jennifer Neiber attended the gathering. Samantha Neiber’s 3-year-old child was also at the home. After the child was put to bed, Jennifer Neiber and Clarke argued about the child, according to the sheriff’s office. Clarke is not the child’s biological father.
Authorities have not disclosed the specific subject of the disagreement. Investigators have said only that it concerned Samantha Neiber’s child and that Jennifer Neiber was upset about an issue involving the 3-year-old. They have not described the words exchanged, identified any earlier dispute or said whether the grandmother was responding to something she had witnessed that evening.
The distinction between known facts and unresolved allegations is important. Authorities have confirmed that deputies responded, that Jennifer Neiber was found dead and that two people were arrested. Their description of the struggle remains an investigative allegation that can be challenged in court. The complete accounts given by Clarke, Samantha Neiber and any other witnesses have not been made public.
Deputies were dispatched at about 10 p.m. after a report of a suspicious death. When they entered the residence, the sheriff’s office said, Clarke and Samantha Neiber were sitting on a bed and Jennifer Neiber was lying on the floor in front of them. Omaha Fire Department personnel pronounced her dead. Officials have not identified the person who requested help or explained why the initial call was classified as a suspicious death rather than an active assault or medical emergency.
That missing interval could be important to the prosecution and defense. Public accounts do not say when the argument began, how long the physical encounter lasted, when Jennifer Neiber became unresponsive or how much time passed before authorities were contacted. Investigators also have not said whether either defendant attempted to help her, called another person or moved anything in the room.
Clarke was interviewed before his arrest, the sheriff’s office said. A local report described him as acknowledging that an argument over the child had become violent. No transcript, recording or formal affidavit containing the full statement was available in the sources reviewed. Without that context, it is not possible to determine whether Clarke admitted particular actions, disputed part of the allegation or gave an account that differed from the sheriff’s summary.
Authorities have released even less about Samantha Neiber’s statements. They have not said whether she agreed to an interview, invoked her right to remain silent or described why she allegedly held her mother’s wrists. The absence of a public statement should not be treated as evidence against her. Those details may appear later in affidavits, hearing testimony or evidence disclosed through the court process.
The bond rulings address custody before trial rather than the defendants’ ultimate responsibility. Judges can consider the severity of the allegations, the evidence presented at the preliminary stage, possible danger to others and the likelihood of returning for future proceedings. Clarke’s no-bond order keeps him jailed. Samantha Neiber’s bond conditions allow possible release if the required amount is posted and any additional court conditions are met.
Both defendants also face child abuse by neglect allegations, although authorities have reported no injury to the 3-year-old. The sheriff’s office has not publicly set out the complete basis for those charges. The child was in the home during the alleged violence and was removed after the arrests. Officials temporarily placed the child with Project Harmony, an Omaha child advocacy organization.
It remains unknown whether the child witnessed any part of the incident. Investigators said the child had been put to bed before Jennifer Neiber and Clarke began arguing, but that does not establish what the child later heard or saw. Authorities have not released the child’s name, current location or custody status. Those details are generally protected because of the child’s age.
Medical evidence is another unresolved part of the case. The sheriff’s account alleges that Clarke obstructed Jennifer Neiber’s ability to breathe, but authorities have not publicly released a final postmortem report describing the cause and manner of death. Such findings can address whether the physical evidence is consistent with witness statements and whether other medical factors contributed.
Investigators have not announced whether they collected DNA evidence, fingerprints, electronic communications or recordings from the residence. They also have not said whether other barbecue guests remained at the home when the dispute occurred. Evidence of that kind could support the state’s chronology, provide a competing account or clarify the defendants’ actions before and after Jennifer Neiber’s death.
No publicly available response from a defense attorney was identified in the reports reviewed. It was also unclear whether either defendant had entered a plea at the time of the initial appearances. An arrest and charging decision represent the beginning of a criminal case, not a final determination. The state carries the burden of proving the charges beyond a reasonable doubt.
Prosecutors can amend or refine charges as evidence develops, and judges may later revisit detention issues if circumstances change. Authorities had not announced additional defendants, revised charges or a completed medical finding as of Wednesday. Clarke remained held without bond, while Samantha Neiber’s release depended on satisfying the bond and any conditions imposed by the court.
Author note: Last updated July 15, 2026.