Mangione Concealed Gun Magazine in Underwear in His Backpack

Police debated whether they needed a warrant to continue searching Luigi Mangione’s backpack after they arrested him and found a gun magazine wrapped in his underwear in the bag, an officer testified Monday.

The testimony came at a court hearing to determine whether police in Altoona, Pennsylvania, improperly questioned Mangione and searched his bag without a warrant as a suspect in the New York murder of Brian Thompson, a UnitedHealth Group Inc. executive.