A former Austin nurse was sentenced to three years and six months in prison this week after pleading guilty to abusing a medically fragile 9-year-old boy in his care, closing a case that hinged on camera footage capturing nearly two dozen alleged incidents of physical abuse against a non-verbal, bedridden child with cerebral palsy. The boy's mother says she is shocked and disappointed by the outcome, even after prosecutors laid out what she considered damning evidence.
Mark Andrew Avery, 61, pleaded guilty to third-degree-felony injury to a child rather than face a jury trial on the original charge, according to KXAN Austin. A sentencing jury was still required to determine his punishment, and after deliberating for five hours, jurors unanimously ordered him to serve three years and six months in the Texas Department of Criminal Justice. That sentencing proceeding began on August 17 and concluded on August 19, per the outlet's reporting.
The case began unraveling in February 2024, when the child's mother, Carolyn Kimbley, and the boy's day nurse grew suspicious after discovering a new bruise on the boy's face. Kimbley reviewed footage from a camera positioned over her son's bed, and what she found led to Avery's arrest that same month. The camera footage, according to the arrest affidavit, revealed multiple incidents in which Avery appeared to physically assault the child.
What the Footage Allegedly Showed
Prosecutors said Avery's alleged abuse included repeatedly striking, choking and restricting the boy's breathing. Investigators say that on February 1, 2024, Avery punched the right side of the child's head with a closed fist. In another instance, Avery pressed a finger forcefully into the child's cheek for about seven seconds, and appeared to obstruct the child's airway for roughly the same amount of time while suctioning his tracheal tube, according to investigators.
The boy's day nurse reported that Avery was, in the language of the arrest affidavit, flat out harming the child and acting abusively and maliciously. A separate extraneous conduct filing identified 20 separate acts related to the charges involving Kimbley's son, while prosecutors said the alleged incidents captured on camera numbered nearly two dozen in total.
A doctor on the boy's care team at Dell Children's Medical Center told investigators that the child could feel pain, and found no documented medical condition that explained an unusual tendency to bruise. The boy's nurse practitioner separately reported that Avery's suctioning technique was too deep and lasted too long, a technique that could cause breathing obstruction and other dangerous medical complications.
A Trail of Prior Warnings
Avery's file with the Texas Board of Nursing shows a pattern of red flags predating his arrest. The board issued him a warning with stipulations in 2018 and another in 2019. Under Texas nursing regulations, that kind of warning typically requires a nurse to complete a year of direct patient care under employer monitoring alongside mandated remediation courses, according to Texas Nurse Lawyers. Avery failed to complete his required KSTAR training, an individualized remediation program the board offers nurses facing lower-level discipline, according to Bertolino LLP.
The concerns stretch back further still. Avery failed to properly administer or document patient care while working at Dell Children's in 2016 and 2017, per KXAN's reporting. Board of Nursing rules require that any public disciplinary order, including a warning with stipulations, be formally disclosed by the nurse to their healthcare employer along with its compliance requirements, according to Bertolino LLP.
Avery voluntarily surrendered his registered nurse license on March 26, 2024, about a month after his arrest. Under Texas nursing regulations, a voluntary surrender carries the same legal effect as a revocation, immediately stripping a nurse of authority to practice in the state, according to the Texas Board of Nursing's own rules. A felony conviction for injury to a child also carries a permanent statutory disqualification from holding professional licenses in healthcare, childcare or education, meaning Avery's career in nursing was effectively over regardless of the criminal case's outcome.
Charge Reduction Draws Mother's Anger
Avery was originally charged with first-degree felony injury to a child or disabled individual with intentional serious bodily injury, a charge tied to the boy's status under Texas Penal Code § 22.04, which defines a disabled individual as someone whose mental, physical or developmental disability substantially impairs their ability to care for themselves. That charge carries a punishment range of 5 to 99 years in prison. On August 10, the Travis County District Attorney's Office agreed to dismiss the first-degree charge in exchange for Avery's guilty plea to third-degree-felony injury to a child, which carries a punishment range of just 2 to 10 years.
Kimbley said she was upset that prosecutors were having difficulty despite what she viewed as damning video evidence, and said she was shocked and disappointed by the ultimate sentence. The gap between the original charge's potential life sentence and the 3.5-year term her son's abuser received sits at the center of her frustration.
Cases involving non-verbal or severely disabled victims often depend heavily on video recordings and expert medical testimony to meet the burden of proving intentional or knowing abuse, since the child cannot testify to what happened, according to Mark A. Perez Law. That dynamic helps explain why the overhead camera footage Kimbley reviewed became the central piece of evidence in building the case against Avery.
Open Questions Around Oversight
The Texas Department of Family and Protective Services is the state agency tasked with investigating allegations of abuse involving children and individuals with disabilities, though the extent of its role in this particular case was not detailed in reporting on the sentencing. What remains clear is that state nursing regulators flagged problems with Avery's practice years before his arrest, and that those warnings did not prevent him from continuing to work in direct patient care for a medically fragile child.
