Parents Accused of Murdering Obese Son Fed Him Junk Food Diet, Prosecutors Say

Casper O’Brien — the obese 7-year-old who died weighing 255 pounds — was fed a diet of French fries and chips … this according to prosecutors who charged his parents with murder.

John Potbury, the Genesee County Chief Assistant Prosecuting Attorney, tells TMZ … Casper’s parents, Damien and Jessica O’Brien, fed him the same thing every day … a large bag of potato chips, a large order of French fries, apple juice, and Sparkling Ice carbonated water.

According to Potbury, there’s no indication Casper was allowed to exercise to shed weight … and he says the child had bed sores from staying stationary in bed for great lengths of time.

We’re told Casper weighed 104 pounds in February 2024 … but, less than two years later, he’d gained more than 150 pounds.

In addition to Casper’s condition, Potbury says the home itself was in bad shape … with layers of dirt covering things and a non-operational toilet filled with human feces.

As you know … Damien and Jessica have been arrested and charged with second-degree murder, child abuse, and torture after Casper’s death. Prosecutors say Casper was never enrolled in school, and he and his five-year-old sister essentially never “existed in the eyes of the government.”