Boy, 7, Died Weighing 255 Pounds as Parents Face Murder Charges

Prosecutors allege years of severe neglect led to the death of a boy who weighed 255 pounds and rarely received medical care.

FLINT TOWNSHIP, Mich. — Two Michigan parents have been charged with second-degree murder and other felonies after prosecutors said their 7-year-old son died following years of extreme neglect. Authorities allege the child weighed 255 pounds when he died and had received almost no medical care during his life.

The charges stem from the Nov. 4, 2025, death of Casper Jacob Shane O’Brien. Prosecutors say the case reflects prolonged neglect rather than a single incident, alleging the parents failed to obtain routine medical treatment, education and basic care despite having health insurance and the financial means to seek help. The case has drawn attention because of the child’s medical condition, the family’s living conditions and allegations that the parents sought veterinary care for their dog on the same day their son died.

According to investigators, Flint Township police responded to a 911 call reporting a child in medical distress at the family’s home. Casper was taken to a nearby hospital, where he later died. An autopsy determined the cause of death was dilated cardiomyopathy, a form of heart disease that can lead to heart failure. Prosecutors said morbid obesity was identified as a contributing factor. Authorities said the boy stood just over 4 feet tall and weighed 255 pounds at the time of his death. Genesee County Prosecutor David Leyton said investigators found evidence that the child had seen a physician only once during his life, despite his medical condition becoming increasingly severe. Prosecutors allege those missed opportunities for treatment contributed to the child’s deteriorating health.

Damien O’Brien, 40, and Jessica O’Brien, 41, have each been charged with second-degree murder, first-degree child abuse and torture. They are being held without bond while the criminal case proceeds. Prosecutors described the allegations as one of the most serious neglect cases they have encountered, arguing that the child’s suffering was prolonged and preventable. Leyton said investigators determined the family carried health insurance and that the father maintained steady employment, making the lack of medical care especially troubling in the prosecution’s view. Authorities also alleged the parents contacted a veterinarian for treatment of the family’s dog on the morning their son died, a detail prosecutors cited while describing the priorities they believe existed within the household. The allegations remain accusations, and the defendants are presumed innocent unless proven guilty in court.

Investigators also described the family’s home as a hoarding environment. Authorities said the couple’s 5-year-old daughter lived in the residence as well. Prosecutors stated that neither child had attended school and that child protective services had never visited the home before Casper’s death. Officials further alleged the children had little or no interaction with public agencies that might otherwise have identified signs of neglect. Those circumstances have prompted questions about how the family remained outside the attention of schools, social services and other institutions responsible for child welfare. Investigators have not publicly indicated whether additional reviews of agency procedures will occur as the criminal case continues.

The criminal proceedings are now moving through the Genesee County court system. Prosecutors must present evidence supporting the charges, while defense attorneys will have the opportunity to challenge the allegations and evidence presented by investigators. The defendants are scheduled to return to court on July 2 for the next stage of the case. Court proceedings are expected to address probable cause, the admissibility of evidence and scheduling matters before any potential trial. Additional details could emerge through court filings, testimony and medical records as the prosecution advances.

The case has generated widespread public attention because of the child’s age, reported medical condition and the allegations describing years of isolation from schools, doctors and government agencies. Prosecutors have characterized the investigation as one involving extraordinary neglect, while investigators continue reviewing the family’s history and the circumstances surrounding Casper’s death. Authorities have not announced any additional criminal charges involving other individuals. The condition and long-term placement of the surviving child have not been publicly disclosed.

As of Friday, the parents remain in custody without bond, and the next scheduled court hearing is set for July 2. The investigation remains active as prosecutors prepare to present their case.

Author note: Last updated June 26, 2026.