A 24-year-old Iowa man has been sentenced to decades in prison after his 2-month-old daughter died from severe injuries inflicted in an assault, a case that also involved an attack on the child’s mother.
Dylan James Brown, also known as Guy Green, received consecutive prison sentences totaling 55 years after pleading guilty to child endangerment resulting in death and domestic abuse assault. He must serve 35 years before becoming eligible for parole and was also ordered to pay $150,000 in restitution.
The case began on August 7, 2025, when emergency responders were called to a home in Grimes, a suburb of Des Moines, after reports that infant Mia Green was not breathing. She was taken to a hospital for treatment but died on August 19.
Investigators found that Mia had suffered extensive injuries, including fractures to her skull, ribs, clavicle, tibia and pubic bone. Medical findings indicated that the injuries were consistent with severe trauma rather than damage caused by attempts to perform CPR.
Court documents detailed the extent of the alleged assault. Brown struck the infant more than 40 times, according to investigators. When Mia’s mother attempted to intervene, Brown choked her until she lost consciousness. The mother survived the attack.
The case went through several developments as investigators continued examining the circumstances surrounding Mia’s death. Authorities initially pursued multiple felony charges, and prosecutors later sought additional charges after reviewing the medical findings and autopsy information.
Brown ultimately entered a guilty plea to charges related to his daughter’s death and the assault on her mother.
During the sentencing hearing, the court addressed the severity of the injuries and the extreme difference in size between Brown and the infant. The judge condemned the violence, describing the crimes as senseless and deeply disturbing.
Brown’s defense attorney pointed to his history of mental illness and an abusive childhood, arguing that he struggled to control his emotions when triggered. The defense also said there was no evidence that Brown had harbored ill will toward the baby.
Prosecutors, however, stressed that his personal history did not excuse the harm inflicted on the child. They also highlighted his repeated violations of a no-contact order involving Mia’s mother.
The sentence means Brown will spend decades behind bars before he can seek parole. His case has also drawn attention to the vulnerability of infants, who depend entirely on adults for their safety and care.
For Mia’s family, the outcome closes a major stage of the criminal proceedings, though the loss of a child so early in life remains at the center of the case.
