Judge Finds Tailei Qi Not Guilty by Reason of Insanity in 2023 Killing of UNC Professor Zijie Yan, Orders Indefinite Commitment

Judge Rules Qi Could Not Understand His Own Actions

On Friday, Sept. 18, 2026, a courtroom in Orange County, North Carolina, closed a case that started three years earlier with gunfire on a college campus. Judge Allen Baddour found Tailei Qi not guilty by reason of insanity in the death of Zijie Yan, an associate professor at the University of North Carolina at Chapel Hill^[1][3]. Yan was Qi's doctoral adviser. He was shot inside Caudill Laboratories on Aug. 28, 2023, in an attack that put the whole campus on lockdown^[1][8].

The ruling came after a single day of testimony. Two psychiatric experts, one who had evaluated Qi for the defense and one connected to the prosecution's side, described a man in the grip of severe, untreated mental illness at the time of the shooting^[1][2]. Judge Baddour dismissed the murder charge and a related weapons charge, then ordered Qi committed to a state psychiatric hospital^[1][2]. Yan's wife, their two children, and other relatives chose not to attend the hearing^[1].

None of this erases what happened. Qi fired the shots that killed Yan — that fact was never in dispute, in this hearing or before it^[1][2]. What the judge decided was narrower and stranger than a normal verdict: not whether Qi did it, but whether his mind was capable of knowing it was wrong.

The Question Was Never "Did He Do It"

North Carolina uses what's called the M'Naghten rule, one of the oldest and strictest tests for legal insanity in American law^[5][6]. It asks something very specific: at the moment of the act, could the defendant understand what he was doing, or that it was wrong? It doesn't ask whether he was mentally ill in general, or dangerous, or likely to do it again^[5][6][11].

That narrow focus is why insanity defenses almost never work. Studies suggest it's raised in only about 1% of felony cases, and succeeds in roughly a quarter of those attempts^[11]. It's also why this case broke differently. Usually an insanity defense turns into a battle of dueling experts, one hired by each side, disagreeing on the stand^[1][2]. Here, the state's own expert reached the same conclusion as the defense's: Qi could not grasp the wrongfulness of what he was doing^[1].

Attorneys described a pattern that had built for years. They said Qi had gone through at least 10 years of untreated illness, likely starting around high school, before the shooting^[1][2]. He believed Yan was spying on him and had hired people to kill him. Even after his arrest, one expert testified, he kept returning to those delusions rather than to the charges against him^[1][2]. Orange County District Attorney Jeff Nieman put it plainly in court: Qi "was not capable of understanding the inherent wrongfulness of his actions"^[1].

That's also why Qi went through this process twice. In November 2023, a different judge, Alyson Grine, found him incapable of even standing trial, pointing to evaluations describing untreated schizophrenia, delusions, hallucinations, and self-harm in jail^[4][10]. He was later found competent after treatment. His lawyers said from that point on that he would plead not guilty by reason of insanity^[4][10].

"Not Guilty" Doesn't Mean Free

Here's the part that gets lost in a headline: a not-guilty verdict by reason of insanity is not a release. Under North Carolina law, that finding triggers automatic, involuntary commitment^[6][7]. Qi is now confined at Central Regional Hospital in Butner, with no fixed release date^[1][2].

To get out, he can't just wait out a sentence — the burden runs the other way. He'll eventually have to convince a court that he's no longer dangerous and no longer suffering from the illness that drove the shooting^[6][7]. There's no maximum length attached to that commitment. It could be shorter than a life sentence, or it could, in practice, run just as long or longer, which is what research on similar cases has found^[12].

That gap between the label and the outcome is exactly where the disagreement over this case lives. It isn't really a disagreement about the diagnosis. Both sides agreed on that. It's a disagreement about what should follow from it.

Two Ways to Read the Same Hospital Room

From one direction, this looks like the system working as intended. Punishing someone who genuinely couldn't understand his actions were wrong doesn't accomplish what punishment is supposed to accomplish, deterrence included — you can't deter someone who can't process the choice at all^[11]. On this view, indefinite hospital commitment is the right tool, because it keeps Qi confined while also treating the illness that caused the violence, rather than just warehousing him^[6][11]. Mental-health advocates make a related point: cases like this reflect a treatment failure upstream, not a hole in the law. Take away the insanity defense, they argue, and severely psychotic people don't disappear — they just move from hospitals into prisons that have no way to treat them^[11].

From the other direction, this looks like a system that erases the record of what happened. Critics of the insanity defense argue the label "not guilty" tells the public something false — that nobody is responsible — when the facts of the killing were never contested^[12]. Their bigger objection is about who holds the power to decide what happens next. A convicted person's sentence is fixed and public. An insanity acquittee's release depends on later judgment calls by clinicians and a court about whether he's still dangerous, a process some critics say is opaque and unpredictable^[12][13]. Some have pushed instead for a "guilty but mentally ill" verdict, which would keep a formal conviction on the books while still ordering treatment^[12]. That argument traces back partly to John Hinckley Jr.'s 1982 insanity acquittal for shooting President Reagan, a case that pushed Congress and many states to tighten the defense^[12].

And there's a third vantage that gets less attention in U.S. coverage. Because both Qi and Yan were Chinese scholars, Hong Kong outlets covered the 2023 shooting heavily as a story about safety and anxiety for Chinese students in America, with less focus on the legal question of Qi's responsibility^[8]. Victims' advocates, meanwhile, make a case that doesn't fit neatly into either side above: they argue families deserve real information about future discharge decisions and some say in them, something the current process doesn't guarantee^[13].

What the Headlines Left Out

Local outlets covered the ruling fairly evenly, but small word choices carried real weight. WRAL's headline called Qi the "2023 UNC shooter," stating the act plainly, while CBS17 called him a "former UNC student," a softer framing^[1][9]. Chapelboro's headline used "acquits," a word that sounds like release even though the story's own details make clear he's headed to a locked hospital, not home^[2].

WUNC kept calling him "accused" even after the verdict came down, and led its story with the three-year gap between the shooting and the ruling — framing this as a story about a slow system rather than about accountability^[3]. ABC11 stood out for naming Yan by his full title in its own headline, "UNC professor Dr. Zijie Yan," keeping the person who died present in the story rather than reduced to the word "professor"^[4]. None of these choices changed the facts. They changed which part of the story a reader's eye lands on first.

What Doesn't Change

Whatever framing a reader finds most convincing, the facts underneath stay the same. Zijie Yan is dead. His wife and two children are without him^[1]. Tailei Qi fired the shots, and that was never disputed at any point in this case, from the 2023 competency hearing through Friday's ruling^[1][2]. He now sits in a psychiatric hospital in Butner with no conviction on his record and no date set for when, or whether, he'll leave^[1][6][7]. What comes next depends on doctors and a future court, not on anything decided this week.