KANSAS CITY, MO — A Kansas City woman has been sentenced to 13 years in the Missouri Department of Corrections after pleading guilty in connection with the death of her 1-month-old baby in 2024. Mariah Thomas, 28, entered the plea Tuesday morning in Jackson County court to first-degree endangering the welfare of a child.
The case centers on a fatal incident that prompted a police investigation at a home near East 41st Street and Forest Avenue. Court documents say officers found the infant badly burned when they arrived. The child was later identified as Za’riah Thomas.
As part of the plea agreement, a first-degree murder charge was dismissed.
Plea deal removes murder charge but leaves serious felony conviction
Thomas’s guilty plea resolved the case without a trial. By admitting to first-degree endangering the welfare of a child, she accepted responsibility for conduct prosecutors said led to the infant’s death.
The plea agreement also meant prosecutors dropped the murder count that had been filed earlier in the case. That outcome left Thomas facing a lengthy prison sentence, but not the possibility of conviction on the more serious charge.
Jackson County court records show the sentence was imposed Tuesday, ending the criminal case at the trial-court level for now. The record provided in the case does not include any additional terms beyond the 13-year sentence.
Police were called to a home near East 41st Street and Forest Avenue
According to court documents, Kansas City police investigated the suspicious death of an infant on Friday, Feb. 9, 2024. The address given in the charging paperwork places the incident at a home near East 41st Street and Forest Avenue.
Officers responding to the scene observed that the baby had suffered severe burns. The circumstances led investigators to treat the death as suspicious from the start.
The court documents do not describe any other injuries or explain how long the child had been at the home before police arrived.
Charging papers describe a claim that the baby was put in an oven instead of a crib
Charging documents say police were told Thomas had been putting her child down for a nap when she accidentally placed the baby in the oven rather than the crib. That account appears in the court paperwork tied to the investigation.
The records do not say who gave that statement, and they do not provide additional detail about what investigators found inside the home. What is clear from the documents is that the infant was badly burned when officers arrived.
Za’riah Thomas was only 1 month old when she died. The child’s age and the nature of the injuries made the case especially serious as investigators and prosecutors moved forward.
Jackson County court resolved the case after a guilty plea
The guilty plea was entered Tuesday morning in Jackson County court. That court handled the criminal case from the plea stage through sentencing.
Because Thomas accepted the plea agreement, the case did not proceed to a full trial on the original murder charge. Instead, the judgment entered against her reflects the end result of the negotiated resolution.
Her sentence will be served in the Missouri Department of Corrections. The court filing provided in the case does not list a projected release date or whether she received credit for time already served.
The case drew attention because of the child’s age and the unusual allegations
Deaths involving very young children often draw intense scrutiny, and this case was no exception because the victim was a newborn. The allegations also stood out because the charging documents describe an oven being involved in the child’s death.
Those facts made the case one of the most disturbing child-death prosecutions in the Kansas City area in recent memory. Even so, the legal outcome in court was limited to the charge Thomas admitted and the sentence imposed under the plea deal.
The available court information does not say whether any additional proceedings are scheduled. For now, the criminal case has reached a sentencing result with the murder charge dismissed and a 13-year prison term in place.
