The day after a masked gunman killed the CEO of UnitedHealthcare in New York City, police in San Francisco gave the FBI a potentially valuable tip about the identity of the suspect.

The man accused of killing the head of one of the biggest U.S. health insurance companies has been charged in New York with murder as an act of terrorism.

Brian Thompson led one of the biggest health insurers in the US but was unknown to millions of people his decisions affected.

The beginning of the Change Healthcare cyberattack happened when hackers entered a server that lacked multifactor authentication.

UnitedHealth beat second-quarter expectations as an acquisition and more Medicare Advantage customers fueled revenue growth that balanced a jump in care use.

This photo provided by UnitedHealth Group shows Sir Andrew Witty. UnitedHealth Group is promoting former GlaxoSmithKline leader Sir Andrew Witty to become the health insurance providers next CEO immediately. (Richard Fleischman/UnitedHealth Group via AP)UnitedHealth Group is promoting former GlaxoSmithKline leader Sir Andrew Witty to become the health insurance provider’s next CEO immediately. UnitedHealth runs UnitedHealthcare, a health insurance business that covers more than 48 million people mostly in the United States. Shares of Minnetonka, Minnesota-based UnitedHealth Group Inc. slipped 2% to $330.41 while broader markets climbed in Thursday afternoon trading.