Prosecutors initially charged Boelter with the same counts. But under federal court rules they needed a grand jury indictment to take the case to trial.

The U.S. Attorney's Office is expected to deliver an update on federal charges filed against Vance Boelter, the man accused of shooting two Minnesota lawmakers and their spouses.

The man accused of shooting two Minnesota lawmakers and their spouses – killing state Rep. Melissa Hortman and her husband – was indicted by a federal grand jury.