A forensic finding challenged the account Demetrius Beatty gave after Khamyah Honesty suffered fatal injuries while five children were in his care.
WASHINGTON, DC — The medical findings in 2-month-old Khamyah Honesty’s death have become a central piece of the murder case against Demetrius Beatty, whose account that another young child caused her injuries was rejected by a forensic pathologist, according to court-record reporting.
Beatty, 40, is charged with first-degree felony murder and first-degree cruelty to children after Khamyah died following an Aug. 16 emergency response in Southeast Washington. Police say the infant suffered blunt-force injuries and was taken to a hospital after officers found her unresponsive. The medical examiner later ruled the death a homicide. Prosecutors allege Beatty caused the injuries while caring for five children; the defense has disputed that accusation and pointed instead to his 6-year-old son.
The official medical conclusion established the nature of the death without publicly identifying who inflicted the fatal trauma. The U.S. Attorney’s Office said an autopsy determined Khamyah died from multiple blunt-force injuries to the head. Metropolitan Police said the Office of the Chief Medical Examiner ruled the death a homicide on Aug. 18, two days after officers responded to the apartment. A homicide ruling means the death resulted from the actions of another person; it does not itself determine criminal responsibility.
That distinction matters because Beatty’s first reported explanation placed responsibility elsewhere. Court-record reporting says he called 911 and told the operator that his nonverbal autistic 6-year-old son had gotten to the infant and injured her. Police later encountered Beatty with the badly injured baby before emergency personnel transported her for treatment. His defense subsequently argued that the older child, rather than Beatty, caused Khamyah’s injuries and cited Beatty’s decision to seek help as part of its position.
Prosecutors say the forensic evidence does not support that explanation. Reports based on the case records describe multiple injuries involving Khamyah’s head and face. A forensic pathologist concluded that the trauma could not have been caused by the 6-year-old as described, according to those reports. That medical opinion is more specific than the public police and Justice Department announcements, which identify the cause of death as blunt-force trauma but do not reproduce the detailed autopsy findings.
The investigation did not rest on medical evidence alone. Prosecutors also examined what Beatty said at different points after Khamyah was injured. The infant’s mother told investigators Beatty initially said he had gone into a hallway for a phone call and returned to discover the baby bleeding. In another version, the 6-year-old was said to have thrown or rolled the infant. A later account reportedly included Beatty playing ball with children and leaving the room before finding Khamyah hurt. The mother characterized the versions as inconsistent.
Investigators compared those statements with the physical evidence and the household history. Beatty had been caring for Khamyah, her twin and three other minor children at the residence, according to the Justice Department. Police were called to the 800 block of New Jersey Avenue Southeast at about 9:47 p.m. Aug. 16. The government has not publicly identified an independent eyewitness who said they saw Beatty inflict the fatal injuries. The prosecution instead has described a case built from medical findings, statements, prior events and alleged threats.
The alleged motive offered in court-record reporting involves conflict over the twins’ biological father. Beatty and the twins’ mother had other children together but were no longer romantically involved, according to published accounts. Prosecutors say Beatty became upset after learning that another man had fathered the twins. That man was incarcerated. The mother said Beatty nevertheless had cared for the babies as though they were his children at times, creating a more complicated household picture than a simple dispute over custody or caregiving.
Prosecutors have also relied on an alleged threat as evidence of what they say was Beatty’s hostility toward the infants. The mother told investigators that Beatty said the twins would be dead if she left to visit their biological father. The alleged statement occurred before Khamyah’s fatal injuries, according to the reports. It has not been independently established as fact by a verdict, and Beatty is entitled to contest both the statement and the prosecution’s interpretation of it.
Other incidents raised further questions for investigators. About 16 days before Khamyah died, she went down a Metro escalator in an incident involving her car seat. Beatty reportedly described it as an accident, while nurses who treated the child questioned the explanation, according to court-record reporting. The available public charging materials do not identify a separate charge stemming from that event, but prosecutors have cited it while presenting the broader history of concern surrounding the infant.
The twins also had allegedly been confined in a closet on another occasion. Their mother said Beatty placed them there while she was visiting their biological father. A relative of the father reportedly told police the babies had been locked inside. The same relative contacted the D.C. Child and Family Services Agency several times before the homicide because of concerns about the infants. Those earlier contacts may provide context, although public reporting has not fully documented what the agency knew or did after each one.
Investigators also documented conditions involving the other children, according to reporting on the court records. The surviving twin reportedly had a serious diaper rash, and a younger child had a healing burn. Officers described the residence as being in poor condition. Authorities later removed the surviving children through the District’s child-welfare system. None of those observations alone proves the murder charge, but they add to the body of evidence prosecutors may seek to use in describing the environment in which the fatal injuries occurred.
The arrest came after nearly a month of investigation. Police publicly identified Khamyah’s death as a homicide on Aug. 19 and said detectives had quickly recognized “domestic overtones.” On Sept. 16, members of the Capitol Area Regional Fugitive Task Force arrested Beatty pursuant to a D.C. Superior Court warrant. The following day, the U.S. Attorney’s Office announced the murder and cruelty charges and said the Special Victims Unit remained responsible for the investigation.
At Beatty’s initial appearance, Superior Court Judge Dorsey Jones found probable cause that he committed the offenses and ordered him held without bond pending further proceedings. The court’s probable-cause finding is not a conviction and does not resolve the dispute over the defense account. Prosecutors must prove the charged crimes beyond a reasonable doubt if the matter reaches trial, while Beatty may challenge the forensic conclusions, witness testimony and other evidence offered against him.
The case therefore presents two distinct medical and legal questions: what caused Khamyah’s death and who was responsible for causing it. Authorities have formally answered the first by ruling her death a homicide from blunt-force trauma. The second remains the subject of the criminal prosecution. The official materials publicly available for this report do not announce a final disposition, and Beatty remains presumed innocent unless proved guilty.
Author note: Last updated November 7, 2026.