The Sixth Circuit Court of Appeals has affirmed a lengthy prison sentence for a defendant convicted on multiple federal charges related to armed robbery and firearm violations in Ohio.

David Johnson received a 446-month prison sentence after being found guilty of four counts of robbery affecting commerce, four counts of using, carrying, and brandishing a firearm during and in relation to a crime of violence, and one count of felon in possession of a firearm. The convictions were secured under federal statutes 18 U.S.C. § 1951, 18 U.S.C. § 924(c), and 18 U.S.C. §§ 922(g)(1) and 924(a)(2).

In addition to the primary sentence, Johnson received 24 months' imprisonment for violating the terms of his supervised release and a cumulative 24 months' imprisonment for various summary criminal contempt findings by the district court. The case originated in the U.S. District Court for the Northern District of Ohio.

On appeal, Johnson challenged several aspects of his conviction and sentencing. The defendant contested the admission of the government expert's PowerPoint presentation regarding digital evidence analysis. The Sixth Circuit found no abuse of discretion in the district court's evidentiary rulings and determined that the evidence presentation met applicable standards for expert testimony.

Johnson also challenged the consecutive nature of his firearm sentences under 18 U.S.C. § 924(c), arguing that the statutory framework violated constitutional principles. The appellate court rejected these constitutional challenges, reaffirming established precedent regarding mandatory consecutive sentences for multiple firearm violations.

The robberies underlying Johnson's convictions affected interstate commerce, bringing the offenses within federal jurisdiction under the Hobbs Act. The court's decision reinforces federal sentencing guidelines for armed robbery cases involving multiple victims and repeat firearm violations.