She was never implicated in the 1969 murders of actress Sharon Tate and eight others, for which Manson is serving a life term in California.
As they went to enter the car, John Hinckley Jr opened fire and shot Reagan and three other men, including White House Press Secretary James Brady and DC police officer Thomas Delahanty, who both were seriously injured.
When he returned from medical leave, Richardson was gone, and Barton’s replacement supervisor gave him new responsibilities.
These new responsibilities provoked a stress-related psychological disability that led to his eventual early retirement, preventing reinstatement.
Barton, who has a history of anxiety and panic attacks, heard about Richardson’s comments and be came emotionally unstable.