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Michigan Parents Charged With Murder After Autopsy Links 7-Year-Old’s Death to Extreme Obesity

Prosecutors say new forensic findings show prolonged neglect and have led to criminal charges and the younger child’s removal from the home.

Overview

  • Genesee County prosecutors filed second-degree murder, child abuse and torture charges against Damien and Jessica O’Brien after a forensic autopsy identified dilated cardiomyopathy with extreme morbid obesity as a cause or contributing factor in their son Casper’s death on Nov. 4, 2025.
  • Investigators say Casper weighed 255 pounds at about 4 feet 2 inches, was largely immobile, had bed sores, and had been fed a highly restricted diet of snacks and fries, details used by the prosecutor to allege prolonged, severe neglect.
  • Authorities described the family home as a hoarding and filthy environment and said neither child had been enrolled in school or seen by Child Protective Services before Casper’s death, despite the family having employment and health insurance.
  • The O’Briens were arraigned and are being held without bond in the Genesee County Jail; a probable-cause hearing is scheduled for early July with the next court date listed as July 2.
  • Child Protective Services removed the couple’s five-year-old daughter into temporary foster care and the case raises questions about how medical, school and social systems missed signs of extreme neglect over time.