Luigi Mangione may have influenced mass shooting at Manhattan's NFL headquarters: Prosecutors

(NEW YORK) -- Luigi Mangione, the accused UnitedHealthcare CEO killer, may have influenced last month's deadly attack on NFL headquarters in New York City, federal prosecutors argued in a new court filing.

By carrying out the assassination-style killing of CEO Brian Thompson last year on a Midtown Manhattan street, Mangione "hoped to normalize the use of violence," instead of reasoned dialogue, to achieve political objectives, prosecutors said. The prosecutors used last month's mass shooting attack on the NFL headquarters in Midtown as an example.

CTE, or chronic traumatic encephalopathy, is a brain disease linked to repeated hits to the head, often seen in military veterans and athletes, including football players, hockey players and boxers. It can only be diagnosed after a person's death.