Luigi Mangione pleads guilty in federal case related to UnitedHealthcare CEO killing

Mangione's lawyers argue his federal plea bars his prosecution for murder in state court for Brian Thompson's slaying due to New York's double jeopardy law

# Luigi Mangione pleads guilty in federal case related to UnitedHealthcare CEO killing Mangione's lawyers argue his federal plea bars his prosecution for murder in state court for Brian Thompson's slaying due to New York's double jeopardy law **Read the full article:** [CNBC](https://www.cnbc.com/2026/08/14/luigi-mangione-pleads-guilty-brian-thompson-killing.html) *This article was originally published by CNBC. MoneyWiseInc provides expert curation of the best financial content from trusted sources.*