Gary Gathers & Keith Mitchell v. United States, 101 A.3d 1004

On August 8, 1993 Wayne Ballard was shot and killed; Eric Lindsay (passenger) identified Gary Gathers as the shooter and Keith Mitchell as the driver. Gathers and Mitchell were convicted of first-degree murder in 1994.
At trial the government presented MPD Detective Ray Crawford to show motive: that Ballard had been a cooperating witness who identified Gregory Gathers (Gary’s brother) at a preliminary hearing, establishing a reason for appellants to kill Ballard.
Crawford testified at appellants’ trial that, at the Gregory Gathers preliminary hearing, he had identified Wayne Ballard by name as the government’s eyewitness and that Ballard continued to cooperate—testimony the prosecutor emphasized in closing and on appeal.
The Gregory Gathers preliminary hearing transcript showed no mention of Ballard by name; Crawford’s trial testimony was therefore false and was not corrected by the prosecutor.
Appellants later raised a Napue claim (use of false testimony) in a § 23-110 collateral attack; the motions court found the government knew or should have known of the falsity but denied relief as harmless and barred by procedural rules. The court of appeals reversed and remanded for a new trial.

Issue	Plaintiff's Argument	Defendant's Argument	Held
Napue violation — use of false testimony	Gathers/ Mitchell: government used false Crawford testimony about Ballard being named at a prior hearing; violates due process	Government: any error was harmless; challenges to timeliness and procedural barriers	Court: Napue violation established; government must prove harmlessness beyond a reasonable doubt and failed to do so; reversal warranted
Burden of proof for harmlessness	Appellants: once falsity shown, burden shifts to government to prove harmless beyond a reasonable doubt	Government: argued earlier standards and that evidence was cumulative or harmless	Court: adopts Longus/Bagley-Chapman standard — government must show harmless beyond a reasonable doubt and did not meet it
Procedural default (Shepard cause & prejudice rule)	Appellants: did not have actual knowledge of falsity; prosecutor knew; cause and prejudice excuse delay	Government: appellants were on notice and waived claim by not raising it on direct appeal	Court: cause and prejudice established for Napue claim given prosecutorial knowledge and seriousness; procedural bar excused
Remedy	Appellants: new trial required	Government: oppose new trial based on harmlessness and waiver	Court: reversed denial of motion for new trial and remanded for further proceedings

Napue v. Illinois, 360 U.S. 264 (due process violated when government uses known false testimony)
Longus v. United States, 52 A.3d 836 (D.C. 2012) (Napue review de novo; burden shifts to government to prove harmlessness beyond reasonable doubt)
United States v. Bagley, 473 U.S. 667 (prosecutor’s nondisclosure standards and equivalence to harmless-error analysis)
Chapman v. California, 386 U.S. 18 (harmless beyond a reasonable doubt standard for constitutional error)
Shepard v. United States, 533 A.2d 1278 (D.C. 1987) (procedural bar for collateral claims when appellant knew or should have known of claim)
Strickler v. Greene, 527 U.S. 263 (prosecutorial duty and limits on defense counsel’s obligation to pursue suspicions)
Banks v. Dretke, 540 U.S. 668 (prosecutor’s special role to seek justice; disclosure obligations)
Massaro v. United States, 538 U.S. 500 (procedural-default rule is discretionary, not jurisdictional)