Computer crime appeals
Musacchio v. United States
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.

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
What's next
The Fifth Circuit’s judgment remains in place, and the Supreme Court has finished deciding the case.
Documents
Opinions
Docket activity
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Opinion added: Musacchio
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.