Defense files motion to dismiss state case after federal guilty plea but prosecutors say they are prepared to litigate After Luigi Mangione admitted in Manhattan federal court that he killed UnitedHealthcare CEO Brian Thompson, most experts believe that the state murder case against is highly unl...
Source: [Guardian World](https://www.theguardian.com/us-news/2026/aug/23/luigi-mangione-state-case-brian-thompson)