Toddler dies after being 'viciously attacked' by mother's boyfriend: court documents

BLACKFOOT, Idaho -- (KTLA) -- Court documents unsealed Tuesday detailed the horrific events investigators say happened when an 18-month-old boy in Blackfoot, Idaho, was “viciously attacked,” receiving injuries that ultimately led to his untimely death.

Jesus Adan Castillo, 22, is charged with first-degree murder in connection to the death of Zachary Tendoy, the son of Castillo's girlfriend, EastIdahoNews.com reported.

On March 23, around 4 a.m., the Bingham County Sheriff's Office received a 911 call that a child was not breathing at a home on the 1600 block of Camas Street. The caller told dispatchers the boy had fallen out of a crib.

Officers and paramedics went to the home and court documents state Zachary was laying limp on the floor with vomit on his chest. His pupils were fully dilated and his skin tone was described as blueish-gray.

Castillo and the child's mother were inside the home.

According to the court documents, Castillo told police that he was in the shower and the child's mother was sleeping when he heard a loud thud. Castillo said he left the shower to check on Zachary and the toddler “acted dazed” but seemed fine. The boy's condition quickly worsened, so Castillo told officers he woke up the boy's mother and called 911.

Zachary was rushed to Bingham Memorial Hospital, and a cat-scan revealed multiple skull fractures on both sides of his head along with brain swelling, according to documents.

Doctors later discovered severe traumatic injuries including tears in Zachary's major blood vessels, valves and retinal hemorrhaging in Zachary's eyes.

“Doctor's explained…to sustain these injuries in a child of similar size (they would have to have been) in an auto accident at 70 mph … and the tear in the stomach is equivalent to being secured in only a lap belt of the time of the accident,” court documents state. “The Doctors described the attack as being very violent.”