A supporter waits outside a federal courthouse in New York ahead of a January 2026 hearing for Luigi Mangione.

After Luigi Mangione was arrested in December 2024 in connection with the killing of UnitedHealthcare CEO Brian Thompson, the internet did what it often does: It turned something serious into a joke.

Nearly two years later, on Aug. 14, 2026, Mangione pleaded guilty to federal stalking charges and admitted to shooting Thompson. He’s now contesting second-degree murder and related charges in New York state, where his trial is on hold while his attorneys argue much of the case should be dismissed, saying his federal guilty plea means New York would be punishing him twice for the same conduct.

Originally published on theconversation.com, part of the BLOX Digital Content Exchange.