Mangione, 27, who has pleaded not guilty to state and federal murder charges for the killing of UnitedHealthcare CEO Brian Thompson last December, entered the courtroom on Monday in a gray suit. Officers removed his handcuffs during the appearance, as a few dozen Mangione supporters watched the hearing from the back of the courtroom.

The 27-year-old accused killer is back for a pretrial hearing this week.

Lawyers for Luigi Mangione are seeking to have evidence gathered during his arrest thrown out in his murder trial.