KAREN NELSON MOORE, Circuit Judge. Scott Chappelle pleaded guilty to tax evasion and was sentenced to 38 months’ imprisonment. On appeal, Chappelle argues that the district court erred in two respects when computing his offense level under the Sentencing Guidelines. First, he asserts that the district court miscalculated his tax loss under U.S.S.G. §§ 2T1.1 and 2T4.1. Second, he contends that the district court erroneously found that his offense involved sophisticated means under U.S.S.G. § 2T1.1(b)(2). We AFFIRM.

KETHLEDGE, Circuit Judge. In January 1994, the state of Ohio indicted Kevin Keith—along with his cousin and uncle—on cocaine-trafficking charges based on information provided by Rudel Chatman. Less than a month later, someone shot six of Chatman’s relatives, killing three of them. A survivor identified Kevin Keith as his attacker, and an Ohio jury convicted Keith of triple homicide and sentenced him to death.

Keith has since filed four federal habeas petitions. Three of those—including this one—argued that the prosecution failed to turn over exculpatory evidence before trial, in violation of Brady v. Maryland, 373 U.S. 83 (1963). The federal habeas statute bars consideration of these claims unless Keith can show that no reasonable juror today would convict him in light of the “evidence as a whole.” We agree with the district court that Keith cannot make that showing, and affirm.