- Why Luigi Mangione Killed UnitedHealthcare CEO: A Chronic Back Pain Link NDTV
- UnitedHealthcare CEO shooting updates: Luigi Mangione yells outside courthouse as he seeks to fight extradition to New York on murder charges Yahoo! Voices
- Insurers beef up security after UnitedHealthcare CEO Brian Thompson killing USA TODAY
- Luigi Mangione’s hard turn from wealth and success to murder suspect The Associated Press
- What is a ghost gun, the weapon allegedly used in New York CEO shooting? BBC.com