Detective testimony detailed a changed witness account and evidence that challenged the original explanation of Zytina Mason-Brown’s death.
WASHINGTON, D.C. — A judge found probable cause to move forward with a murder case against a 17-year-old boy after a detective testified about conflicting accounts of the 2025 shooting death of 14-year-old Zytina Mason-Brown, including a witness who later withdrew her initial version of events.
The Aug. 27 hearing placed information gathered over more than a year into a courtroom for the first time publicly. A Metropolitan Police Department detective described what investigators say occurred inside a Benning Road apartment, why the first explanation came under scrutiny and how a second account from a girl who was there became significant to the homicide investigation. The defendant, who was 15 when Mason-Brown was killed, is charged with second-degree murder while armed. A probable-cause ruling allows a case to proceed but is not a finding of guilt.
According to the detective’s testimony reported by WJLA, Mason-Brown was making TikTok videos inside the apartment before the shooting. A girl who was present later told police that the boy began dancing close to Mason-Brown. The witness said Mason-Brown pushed him away and handed him a gun she had been holding. Mason-Brown then sat down, and the boy sat across from her and shot her, according to the witness’s later statement. That account is an allegation presented through the investigation and has not been tested at trial.
The hearing was important because the same witness had not initially told police that story. Investigators said she first supported the boy’s claim that Mason-Brown had shot herself. Months later, she returned to authorities and provided a conflicting version. Police said the witness was arrested in June 2026 for allegedly lying to investigators about the shooting. The public reporting reviewed for this article does not establish how her own case was resolved, and her arrest does not determine whether every part of her later account is accurate.
The defendant’s first account was also described in court. A detective testified that the boy said he had obtained the firearm from his uncle and that Mason-Brown had been handling it while recording videos. He claimed she accidentally shot herself. Police responding to the apartment on May 21, 2025, were therefore confronted not only with a fatal shooting scene but also with statements from two young people who, according to investigators, initially pointed toward the same explanation.
The physical investigation later produced a critical development independent of those statements. The D.C. Office of the Chief Medical Examiner determined on Aug. 19, 2025, that Mason-Brown’s manner of death was homicide. The Metropolitan Police Department has not publicly released a full autopsy report. PEOPLE reported that a medical examiner’s office spokesperson identified the cause as a gunshot wound. WJLA reported that a detective told the court the final autopsy showed that someone other than Mason-Brown had fired the shot. The homicide finding fundamentally changed how authorities treated the case.
By then, nearly three months had passed since officers responded to the 1700 block of Benning Road NE at about 5:08 p.m. on May 21. Officers found Mason-Brown unconscious and not breathing with a critical gunshot wound. D.C. Fire and EMS personnel found no signs consistent with life and pronounced her dead. Police later identified her as a 14-year-old resident of Clinton, Maryland. Her relatives said she was an eighth grader who planned to pursue work as a beautician and real estate agent.
Once the death was classified as homicide, police publicly sought additional information. A homicide bulletin named Mason-Brown, listed the location and time of the shooting and advertised a reward of up to $25,000 for information leading to an arrest and conviction. The public notice did not accuse a particular person. Instead, detectives continued assembling a case in which the statements given at the apartment, the medical findings and the later witness account pointed in different directions.
The detective also testified about the moments after the shooting as described by the witness. She said the defendant’s mother was home and knocked on the door after hearing the gunshot. The witness alleged that the boy told her to be quiet before police were called. Investigators further said they reviewed social-media communications and apparent images circulated after Mason-Brown’s death as they examined whether others may have been in the room or had information about what happened. Publicly available reporting has not identified any additional eyewitness who has been established as present for the shooting.
The court hearing came one day after police arrested the 17-year-old pursuant to a D.C. Superior Court pre-petition custody order. The Metropolitan Police Department announced that he had been charged with second-degree murder while armed. Police did not name him because he is a juvenile. The formal announcement was brief and did not describe the competing statements or the detailed sequence alleged by the witness; those elements emerged in reporting on the post-arrest proceeding.
The murder allegation also followed earlier gun-related charges. In September 2025, FOX 5 reported that the boy who had been present was charged with possession of an unregistered firearm and tampering with physical evidence. At that point, he had not been charged with Mason-Brown’s killing. The later homicide charge therefore represents a separate and much more serious step taken after additional investigation. Prosecutors will bear the burden of proving the murder allegation under the applicable standard if the matter proceeds to adjudication.
Mason-Brown’s family had publicly challenged the early understanding of the shooting before the arrest. Her aunt, Dawna Cooke, said in 2025 that relatives had been pressing for answers because she did not believe Mason-Brown killed herself. Her grandmother, Michelle Brown, called the death senseless. After the 2026 arrest, Brown told FOX 5 she felt satisfied that police had apprehended a suspect while emphasizing that the development was not a cause for celebration. The family’s views provide context to the long investigation but do not substitute for evidence considered by the court.
The probable-cause decision is therefore best understood as an intermediate legal step. The judge did not decide whether the witness’s later account is true beyond a reasonable doubt or whether the defendant committed murder. Instead, the court determined that the case had enough evidentiary support to continue. Questions about credibility, the reliability of changed statements, forensic evidence and the defendant’s account may become central as the case proceeds.
The juvenile status of the accused also limits the amount of case information available publicly. Police have identified him only by his age and residence in Southeast Washington, and reporting immediately after the arrest said it was unclear whether the case would ultimately be handled in another forum. No guilty plea, conviction or trial verdict was confirmed in the public sources reviewed for this article. Those gaps are especially important in a case where early accounts changed and where much of the prosecution theory has emerged through reported testimony rather than a completed trial record.
For now, several facts are established while the central allegation remains for the court to resolve: Mason-Brown died after being shot inside the Benning Road apartment; the medical examiner classified her death as homicide; a witness later changed the story she had originally given police; investigators arrested a teenager who was present; and a judge found probable cause for a second-degree murder while armed case to continue. Whether prosecutors can prove that charge remains unresolved.
Author note: Last updated Oct. 17, 2026.