Suspected UnitedHealthcare assassin Luigi Mangione's plan to 'wack' CEO revealed in journal entries: affidavit

Suspected UnitedHealthcare CEO assassin Luigi Mangione allegedly kept a journal in which he mused over the crime, had a handwritten manifesto and wrote letter "To the Feds.

"Is there one case, two cases, two investigations? Is there a joint investigation? Frankly, I’ve never seen anything like that and what’s happening here." 

"This investor conference is a true windfall," one of the entries reads, according to the affidavit. "And – most importantly – the message becomes self-evident."

The new federal case brings the potential for the death penalty back into the equation, should Mangione be convicted. Mangione's New York criminal defense attorney, Karen Friedman Agnifilo, was reportedly caught off guard by the federal charges, and suggested the Manhattan DA's office was also left in the dark by the Southern District. "Is there one case, two cases, two investigations? Is there a joint investigation? Frankly, I’ve never seen anything like that and what’s happening here," Agnifilo said, the New York Post reported. "This is a highly unusual situation that we find ourselves in."