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

The legal principle prevents a person from being tried twice for the same crime. But Mr. Mangione’s situation shows how complicated the judicial system can be.Luigi Mangione is facing both a state and federal trial in relation to the killing of Brian Thompson, but the U.S. Constitution says that a defendant can’t be tried or the same crime twice. However, there are some exceptions.