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Computer crime appeals

Musacchio v. United States

Updated Oct 18, 2026

In brief

The Supreme Court agreed with the Fifth Circuit: the evidence challenge used the charged crime’s requirements, and Musacchio could not first raise the prosecution deadline on appeal.

Where it stands
Decided

Decided 9-0 · January 25, 2016 · Opinion by Justice Thomas

What it’s about
Michael Musacchio argued that the evidence against him should be judged against an extra element mistakenly added to the jury instructions, and that he could raise the deadline for prosecuting him (statute of limitations) for the first time on appeal.
Who it affects
The ruling leaves Musacchio unable to use the extra jury-instruction requirement in his evidence challenge or to raise the prosecution deadline for the first time on appeal.

Summary: written with AI from the case record.

Illustration for Michael Musacchio v. United States
Conceptual illustration · AI-generated

What it's about

The Supreme Court unanimously agreed with the Fifth Circuit that evidence is measured against the charged crime’s statutory elements and Musacchio could not raise that deadline defense for the first time on appeal.

The jury instructions included an extra requirement beyond what the charged crime called for.

Question presented

1. Does the law of the case doctrine require the sufficiency of evidence to be measured against the elements laid out in the jury instructions when those elements require the government to prove more than the statute requires and the government did not object at trial? 2. Is a statute of limitations defense that is not raised at trial reviewable on appeal?

What the Court decided

Holding

1. A sufficiency challenge should be assessed against the elements of the charged crime, not against the elements set forth in an erroneous jury instruction. Sufficiency review essentially addresses whether the Government’s case was strong enough to reach the jury. A reviewing court conducts a limited inquiry tailored to ensuring that a defendant receives the minimum required by due process: a “meaningful opportunity to defend” against the charge against him and a jury finding of guilt “beyond a reasonable doubt.” Jackson v. Virginia, 443 U. S. 307, 314–315. 2. A defendant cannot successfully raise §3282(a)’s statute-of-limitations bar for the first time on appeal. 359, affirmed.

Result
Affirmed

The Court's reasoning

The Court said an evidence challenge asks whether the government’s proof was strong enough to go to a jury under the charged crime’s requirements, not under extra wording in an erroneous instruction. It said this review protects the defendant’s chance to defend and the requirement that a jury find guilt beyond a reasonable doubt.

The vote

  • Joined the judgment
  • Wrote an opinion
Majority · 9joined the Court's opinion
  1. Breyer
  2. Kagan
  3. Thomaswrote the opinion
  4. Scalia
  5. Kennedy
  6. Ginsburg
  7. Sotomayor
  8. Roberts
  9. Alito
9 justices joined the judgment.

What's next

The Fifth Circuit’s judgment remains in place, and the Supreme Court has finished deciding the case.

Documents

1

Docket activity

9
  • New analysis added

    Oct 18, 2026 · Court records

  • AI analysis generated: Case Briefing

    Oct 18, 2026 · Generated

  • New analysis added

    Oct 18, 2026 · Court records

  • AI analysis generated: Impact Analysis

    Oct 18, 2026 · Generated

  • AI analysis generated: Opinion Summary

    Oct 18, 2026 · Generated

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  • AI analysis generated: Decision Record

    Oct 18, 2026 · Generated

  • Case data updated: summary, question_presented, generation_metadata

    Oct 18, 2026 · Court records

  • Case data updated: question_presented, extraction_metadata

    Oct 17, 2026 · Court records

  • Opinion added: Musacchio

    Jan 25, 2016 · Court records

Sources

Primary materials plus reporting. Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.

Checked Oct 18, 2026Methodology

Court records and filings

Reporting and analysis