Luigi Mangione Is Facing Two Trials. Isn’t That Double Jeopardy?

Luigi Mangione faces separate trials in New York state court and federal court for the December 2024 death of UnitedHealthcare CEO Brian Thompson. The Fifth Amendment's Double Jeopardy Clause prohibits retrying a defendant for the same offense after acquittal or conviction in a single sovereign jurisdiction, but the "dual sovereignty doctrine" allows separate prosecutions by different sovereigns—in this case, the state and federal governments—without violating that protection. Mangione was arrested in Pennsylvania in December 2024 and extradited to New York, where he was charged with second-degree murder and other counts; federal charges followed separately. The doctrine has been applied in numerous cases where defendants faced state and federal prosecution for overlapping conduct.

Next story