Luigi Mangione pleaded guilty to federal charges in the UnitedHealthcare executive murder case, but his detailed courtroom confession may be a calculated legal strategy to eliminate state charges through a double jeopardy argument—a risky move that could backfire if the state trial proceeds. Mangione's defense team filed a double jeopardy motion arguing that since he pleaded guilty to federal stalking charges that resulted in the victim's death, the state murder trial should be dismissed entirely.