The Massachusetts Supreme Judicial Court recently upheld the conviction of Shu Feng Hsu for involuntary manslaughter in the death of her eleven-month-old niece, Chloe Chen. The court's decision, made on September 9, 2026, is significant as it addresses the admissibility of expert testimony regarding abusive head trauma, a controversial subject in child injury cases. The ruling has implications for how similar cases may be handled in the future.
Shu Feng Hsu was charged with murder in the first degree after Chloe was found unresponsive in her care on February 15, 2018. The case drew attention due to the nature of the injuries sustained by the child and the expert testimony presented during the trial. The court's ruling affirms the lower court's handling of the case and the decision to allow certain expert testimony, which Hsu's defense had contested.
The case began when Hsu was indicted on January 11, 2019, following the death of her niece. Chloe lived with her parents and grandparents in Quincy, Massachusetts, while Hsu and her husband lived on the first floor of the same home. On the day of the incident, Hsu was responsible for caring for Chloe while other family members were at work. Chloe was reported to be healthy prior to the incident, with no significant medical issues.
On the afternoon of February 15, surveillance footage captured sounds of a baby crying, followed by a series of thuds. Shortly after, Hsu called 911, stating that Chloe seemed unresponsive and was having difficulty breathing. Emergency responders found Chloe unconscious and exhibiting signs of severe trauma. She was transported to a hospital, where she underwent surgery but ultimately died two days later.
During the trial, the prosecution presented expert testimony that Chloe's injuries were consistent with abusive head trauma, which is characterized by injuries resulting from inflicted blunt force or violent shaking. The defense sought to exclude this expert testimony, arguing that it was not reliable under the Daubert-Lanigan standard, which assesses the admissibility of scientific evidence. However, the trial judge allowed some expert testimony while restricting others, ultimately permitting experts to state that Chloe's injuries were consistent with abusive head trauma but not that it was definitively the cause of her death.
The jury convicted Hsu of involuntary manslaughter, finding that her actions constituted reckless conduct that led to Chloe's death. Hsu appealed the conviction, arguing that the evidence was insufficient to support the verdict and that the trial judge had erred in allowing the expert testimony.
The Supreme Judicial Court, in its ruling, affirmed the conviction. The court stated, "The evidence presented at trial, viewed in the light most favorable to the Commonwealth, was sufficient to support the jury's verdict of involuntary manslaughter." The court emphasized that the jury was entitled to consider the evidence and determine the credibility of the expert testimony.
This ruling is significant as it reinforces the admissibility of expert testimony regarding abusive head trauma, which has been a contentious issue in child injury cases. The court's decision highlights the importance of expert opinions in establishing the nature and cause of injuries in such cases. It also indicates that juries have the discretion to weigh conflicting expert testimonies when reaching a verdict.
Moving forward, this ruling may impact how similar cases are prosecuted in Massachusetts and potentially in other jurisdictions. The court's affirmation of the trial judge's decisions regarding expert testimony sets a precedent for future cases involving allegations of child abuse and neglect.
As for Hsu, her legal team may explore the possibility of further appeals, although the court's decision is a significant hurdle. Details regarding any related cases or appeals were not available in the court filing.