Shelton v. United States, 26 A.3d 216

Arnell W. Shelton was convicted by jury in the District of Columbia Superior Court of assault with intent to kill while armed, aggravated assault while armed, two counts of possession of a firearm during a crime of violence, carrying a pistol without a license, and malicious destruction of property.
Shelton claimed the trial court erred in excluding evidence that the government had withheld exculpatory statements by the complainant Boyd, information the government did not disclose until the eve of the second trial.
The late disclosure concerned Boyd’s initial hospital interview in which he did not identify Shelton as the shooter, and the related implication that the government viewed its case as weaker.
Defense requested admission of the nondisclosure as admission by conduct to show weakness of the government’s case; the trial court denied admission.
The appellate court held the exclusion to be harmless error and affirmed Shelton’s convictions.
The court vacated one count of possession of a firearm during a crime of violence arising from the same single violent act and remanded for that correction.

Issue	Plaintiff's Argument	Defendant's Argument	Held
Admissibility of evidence of the government’s withholding exculpatory statements.	Shelton argues the jury should hear that the government knew of exculpatory material.	The government withheld Brady material and it should have been admitted to show weakness of the case.	Harmless error; convictions affirmed.
Whether admission by conduct inference is permissible.	Evidence of withholding exculpatory material could support an inference the government knew its case was weak.	The government’s withholding could be inferred, but it was not properly admitted at trial.	Permissible as a relevant inference, but error deemed harmless.
Whether the government’s late disclosure implicates prosecutorial vouching.	Cross-examination about the government’s disclosure practices shows bias and bad faith.	The questioning was not improper or prejudicial beyond harmless effects.	No reversible error; questions did not require limiting instruction.
Clarity on the single-acts rule affecting the firearm counts.	Two firearm counts stem from a single act, so one should be vacated for double jeopardy concerns.	Two counts reflect separate statutory predicates; multiple convictions valid.	One firearm-count vacated; remand for correction.

Brady v. Maryland, 373 U.S. 83 (U.S. 1963) (unlawful suppression of favorable evidence violates due process)
Kyles v. Whitley, 514 U.S. 419 (U.S. 1995) (prosecutor’s withholding undermines confidence in verdict)
Kotteakos v. United States, 328 U.S. 750 (U.S. 1946) (harmless-error review after evidentiary error in trial)
Nixon v. United States, 730 A.2d 145 (D.C. 1999) (two convictions for same act; one must be vacated)
United States v. Hasting, 461 U.S. 499 (U.S. 1983) (harmless-error principle in prosecutorial error cases)
In re G.H., 797 A.2d 679 (D.C. 2002) (evidentiary inference of consciousness of guilt in civil context; relevance analogies)