Luigi Mangione, who is accused of killing a health insurance executive in what prosecutors describe as a planned attack, may face significant challenges if he raises a mental-health breakdown defense at his upcoming murder trial, legal experts say. Reuters reports that the defense could be difficult to persuade jurors with, depending on how well the evidence fits the legal requirements for the specific claim being made. While some defendants seek to attribute criminal responsibility to mental health issues, experts note that courts and juries often scrutinize credibility, the timing of symptoms, and the degree to which the condition impaired the defendant’s ability to form intent or understand actions. The available coverage focuses on potential legal and evidentiary obstacles rather than on the details of the alleged conduct itself. The excerpts also do not indicate that the defense has yet succeeded or that any expert findings have been presented publicly. The case proceeds through the trial process, where both sides will likely address medical and psychological evidence and argue over whether it meets the standards the court will apply.