Luigi Mangione cut off contact with his family and friends six months ago, a senior law enforcement official tells PEOPLE.

New York City’s police commissioner says the gun found on the suspect in the killing of UnitedHealthcare’s CEO matches shell ...

It’s targeted, precise, and doesn’t risk innocents,” said a sentence in a spiral notebook belonging to the man charged with ...

The killing of UnitedHealthcare’s CEO and the acquittal of Daniel Penny present a perfect storm for the New York mayor, whose ...

Luigi Nicholas Mangione is jailed in Pennsylvania on weapon and forgery charges, but he also has been charged with murder in ...

New York’s police commissioner says the The gun found on the suspect in the killing of UnitedHealthcare’s CEO matches shell ...

NYPD's top detective said Luigi Mangione's motive might have stemmed from an accident that sent him to an emergency room in ...

Authorities were analyzing a fingerprint on a cellphone found after the killing of UnitedHealthcare's CEO as suspect Luigi ...

Sgt. Rayna Madho was charged with two counts of petty larceny for stealing from a store on Long Island on two different ...

The 26-year-old suspect shouted at reporters and struggled with deputies outside the Blair County Courthouse on Tuesday, ...

Mangione likely was motivated by his anger with what he called “parasitic” health insurance companies and a disdain with ...

Online posts have listed the names and salaries of health insurance executives and "Wanted" signs have been posted in ...