Alleged gunman faces nine charges including second-degree murder in New York state case
Luigi Mangione is due to appear in Manhattan state court on Monday for the first day of a potentially weeklong proceeding to weigh the legality of evidence gathered during his arrest after the killing of a prominent healthcare executive.
Mangione was apprehended last December in the murder of senior United HealthCare figure Brian Thompson last December. In addition to state-level charges, he faces a Manhattan federal court case.