Diary entries written by Luigi Mangione reveal the now 27-year-old’s detailed thinking before the killing of UnitedHealthcare CEO Brian Thompson last year, a new court filing shows.

Luigi Mangione's lawyers previously told the court their client, who is charged with killing UnitedHealthcare's Brian ...

Luigi Mangione surveilled UnitedHealthcare CEO the night before he allegedly shot him on a Midtown street and initially ...

Six weeks before UnitedHealthcare CEO Brian Thompson was gunned down outside a Manhattan hotel last December, Luigi Mangione mused about rebelling against “the deadly, greed fueled health insurance ...

A Connecticut man arrested for threatening a local health care CEO cited the murder of UnitedHealthcare CEO Brian Thompson in ...

Luigi Mangione, the Ivy League graduate who has been charged in connection with the murder of healthcare CEO Brian Thompson, ...

Investors long trusted UnitedHealth to deliver earnings beats, despite limited transparency. Now they want answers.

The health insurer has suffered mounting problems and backlash since the fatal shooting of former CEO Brian Thompson.

As the trial of Luigi Mangione for the alleged murder of UnitedHealthcare CEO Brian Thompson approaches, more and more info ...

Witty, who largely led the U.S. healthcare giant from the U.K., made big bets on Medicare enrollees that backfired.

UnitedHealthcare sued The Guardian on Wednesday for defamation, claiming the British daily ran information it knew to be incorrect in order to “capitalize” on its CEO’s assassination.