After Brian Thompson of UnitedHealthcare was killed in Manhattan, the phones at corporate security firms were “ringing off the hook.” Health Insurance and Managed Care, Threats and Threatening Messages, Security and Warning Systems, Boards of Directors, UnitedHealth Group Inc, Corporations, Murders, Attempted Murders and Homicides, Thompson, Brian (1974-2024) After Brian Thompson of UnitedHealthcare was killed in Manhattan, the phones at corporate security firms were “ringing off the hook.” NYT > Business