DC Superior Court Judge Errol Arthur found a stabbing defendant mentally competent to proceed in his court case on July 27.
Mercellus Thomas, 24, is charged with assault with a dangerous weapon for his alleged involvement in a stabbing at a Metrobus stop at the intersection of New Jersey Avenue and H Street, NW on Oct. 6, 2025.
According to court documents, Thomas reportedly believed the victim robbed his associate, an older woman. Thomas then allegedly swung a box cutter at the victim, severing a portion of his right ear. The victim reported that he raised his left hand in a defensive posture, resulting in a laceration to his left hand.
At the hearing, Judge Arthur explained that he reviewed a July 22 report from the Department of Behavioral Health (DBH), which determined that Thomas is mentally competent to stand trial. This means Thomas has the mental capacity to understand the charges against him and assist in his case. Neither Thomas’ attorney, Karen Minor, nor the prosecutor objected to Thomas’ competency finding.
The prosecutor noted that plea negotiations were ongoing but did not specify the terms.
Parties are slated to reconvene on Sept. 22.
