Manhattan prosecutors said that when Luigi Mangione was arrested on a murder charge last year he was carrying a diary that referenced “Unabomber” Ted Kaczynski and claimed UnitedHealth Group Inc. executive Brian Thompson “had it coming.”

Mangione, 27, faces a state murder charge for the fatal shooting of Thompson outside a Midtown Manhattan hotel on Dec. 4. Federal prosecutors filed separate charges, one of which carries the death penalty. Mangione has pleaded not guilty in both cases.

Last month, he asked a judge block the diary from being shown at his trial. He also requested the state murder case be dropped. On Wednesday, prosecutors said in a court filing that the red notebook contained “pertinent” evidence “that explained in unambiguous terms defendant’s intent and motive in deliber

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