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U.S. prosecutors formally told a court on Thursday that they plan to seek the death penalty for Luigi Mangione, who is accused of murdering a UnitedHealth Group executive in New York last year.
Mangione, 26, is due to appear in Manhattan federal court for an arraignment on Friday. He has pleaded not guilty to a separate New York state indictment he faces over the murder of Brian Thompson, the CEO of UnitedHealth's insurance division.