A New York court has made a significant ruling regarding the admissibility of expert testimony in the murder trial of Kent Moo Shand. The court's decision, issued on June 2, 2026, affects the ongoing case where Shand is charged with Murder in the Second Degree and Criminal Possession of a Weapon in the Second Degree following the fatal shooting of Keon Gravenhise in Brooklyn on March 11, 2021.
The ruling is important as it determines what evidence can be presented to the jury, which could influence the outcome of the trial. Shand's defense team sought to include expert testimony on the use of force and firearms training to support their self-defense claim. The court's decision will shape the narrative presented to the jury and could have broader implications for similar cases in the future.
Background
The case involves Kent Moo Shand, who is accused of fatally shooting Keon Gravenhise during a confrontation in Brooklyn. According to the prosecution, the incident occurred around 12:20 a.m. when Gravenhise, who was intoxicated, displayed a loaded firearm and threatened to shoot. Shand, who is also alleged to have possessed a firearm illegally, retrieved his weapon from his car and shot Gravenhise five times in the back. The entire incident was captured on surveillance video.
The prosecution argues that the facts of the case are clear, noting that Gravenhise's possession of the firearm was illegal and that he had threatened others with it. In contrast, Shand's defense claims that he acted in self-defense, asserting that he was justified in using deadly force in response to the threat posed by Gravenhise.
The case has been contentious, leading to a mistrial in a previous jury trial that began on February 3, 2025. Following this, Shand's defense filed a motion to admit expert testimony from Jonathan S. Amass, a former NYPD officer, to support their claims regarding the reasonableness of Shand's actions during the incident.
The Ruling
The court, presided over by Judge Dineen Ann Riviezzo, ruled on the admissibility of the proposed expert testimony. While the defense was allowed to present some aspects of expert testimony, many of their requests were denied. The court stated, "The jury may not be displaced of its fact-finding function by expert testimony unless there is a reason to suppose that such testimony will elucidate some material aspect of the case that would otherwise resist comprehension by jurors of ordinary training and intelligence."
Specifically, the court permitted Amass to testify about general issues related to firearms safety and the mechanics of the firearm that Gravenhise possessed. Additionally, the court allowed Dr. Richard Stripp to testify regarding Gravenhise's level of intoxication at the time of the incident. However, the court denied other requests for expert testimony, particularly those that would comment on the reasonableness of Shand's belief that he was acting in self-defense.
The ruling emphasized that the issues of self-defense and the reasonableness of Shand's actions are not beyond the understanding of the average juror. The court noted that the entire incident was recorded on video, allowing jurors to evaluate the evidence directly.
Impact
This ruling has significant implications for the ongoing trial and for future cases involving self-defense claims. By limiting the scope of expert testimony, the court has reinforced the principle that jurors are capable of assessing the facts of a case without the need for expert interpretation on matters that fall within their understanding.
The decision may influence how defense attorneys approach similar cases in the future, particularly regarding the use of expert witnesses to bolster self-defense claims. The court's emphasis on the jury's role in evaluating evidence suggests that defendants must rely on clear and compelling evidence rather than expert opinions to establish their claims.
What's Next
Shand's case will proceed to trial with the court's ruling in place. The defense may still appeal certain aspects of the ruling, but details regarding any potential appeals were not available in the court filing. The outcome of this trial could set important precedents for how expert testimony is utilized in self-defense cases moving forward.