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Further heartbreaking details revealed as parents face murder charge after 7-year-old dies weighing 255 pounds
New details have been released about the life of a morbidly obese seven year old, as his parents are charged with his murder.
As previously reported, Damien O’Brien, 40, and his wife Jessica O’Brien, 41, were charged with second-degree murder, as well as second-degree child abuse and torture, relating to their late son Casper.
The seven-year-old died weighing 255lbs, and it was claimed he never attended school and only saw a doctor once in his life.
Police had responded to a 911 call for a child in distress at the family’s home in Flint Township, Michigan on November 4, 2025, where they found Casper severely ill.
The young boy was rushed to a local hospital where he died shortly afterward from dilated cardiomyopathy, a disease that leads to heart failure, with a contributing cause being morbid obesity, per the medical report cited by the New York Post.
New reports state that Casper had gained 151lbs in less than two years before his death, after being fed a "steady diet of snack foods".
Genesee County Prosecutor David Leyton said Monday, per the New York Post: "Clearly the parents were feeding the child improperly, to say the least. He wasn’t getting the nutrition he needed."
Tragically, Leyton also revealed that authorities believe Casper was nonverbal as well as bedridden and covered with bedsores and various rashes before he passed away.
Leyton added: "It’s a very, very sad and tragic situation. I’ve been the prosecuting attorney for 22 years and I thought I’d seen it all but I’ve never seen anything quite like this."
The Genesee County Medical Examiner’s report listed Casper's cause of death as "dilated cardiomyopathy", a condition that affects the heart's ability to pump blood, with his weight also being a contributing factor to his death.
Casper's autopsy report, which also cited law enforcement and Child Protective Services, claimed the family's home was filled with trash and that Casper was not given medical care despite the family having health insurance.
His autopsy report states that Casper was taken to the doctor once in February 2024, when he weighed 104lbs.
Casper's records state he was 4'2" tall at the time of his death, and weighed 255 pounds - far exceeding the healthy weight for a child of his age and height, which the CDC says should be between 50 and 73 pounds.
Prosecutors say that Casper suffered "extraordinary, terrible neglect" at the hands of his parents - who also have a five-year-old daughter - throughout his short life.
Leyton told WJRT: "On the face of it, this is cruel and extreme suffering from this child caused by the neglect of the parents.
"That is obesity. This child did not have a pediatrician, was only taken to the doctor I believe … once."
Leyton added: "None of these kids even existed in the eyes of the government. CPS had never been out there, nobody knew about these kids, they had not been to school.
"I can’t think of what else this is, other than extraordinary, terrible neglect. And to me, that is willful and wanton misconduct, which is second-degree murder."
A funeral tribute posted in November described Casper as a "bright, loving young boy whose joyful spirit touched everyone around him."
The message added: "He loved watching Super Monsters, especially his favorite character, Frankie Mash.
"He was preceded in death by his little brother, Phoenix."
An attorney for Damien O’Brien told the outlet that his client was “innocent until proven guilty beyond a reasonable doubt in a court of law.”
The O'Briens are being held at the Genesee County Jail without bond until their next court appearance on July 2.















