Whoever shot UnitedHealthcare CEO Brian Thompson appears to have planned carefully, veterans of NYPD murder manhunts say.

Luigi Mangione, who has been charged in last week's murder of UnitedHealthcare CEO Brian Thompson in New York City, was taken into custody on unrelated charges in Pennsylvania earlier on Monday.

Luigi Mangione, 26, was arrested in Altoona, Pa., in connection with Brian Thompson's fatal shooting on Dec. 4, in New York City.

The mother of Luigi Mangione said "it might be something that she could see him doing" in response to CEO killing.

UnitedHealthcare chief executive Brian Thompson was fatally shot in the back ... silencer on the weapon as he opened fire, police say. NYPD chief of detectives Joseph Kenny said the gun appeared ...

NYC Mayor Eric Adams explained his desire to look suspected UHC CEO assassin "in the eye" after viral perp walk.

UnitedHealthcare CEO Brian Thompson assassination suspect Luigi Mangione was likely "overcharged" when Manhattan DA Alvin Bragg alleged terrorism, experts say.

In the face of a potential death penalty, Mangione's defense team want to know if federal and state prosecutors are colluding

The indictment comes as some states expand terror laws to ensnare protesters who block "critical infrastructure."

Representative Ritchie Torres warned that elevating Mangione to "mythical status" will "deepen his delusions of grandeur."

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