- UnitedHealthcare CEO killing latest: Investigators spoke to Mangione’s mother before arrest ABC News
- Mother of suspect in CEO’s killing told police person of interest could be her son, sources say Yahoo! Voices
- Luigi Mangione retains high-profile former prosecutor as defense lawyer NPR
- Luigi Mangione disappeared months before United Healthcare CEO Brian Thompson’s fatal shooting NBC News
- F.B.I. Passed Tip About Mangione to New York Police After C.E.O. Killing The New York Times