Answer:
As Charles Foster Kane’s last word was "Rosebud" the key to Kane’s character, Jerry Thompson is sent to talk to Kane’s former associates, Mr. Bernstein, Jedediah Leland, and his wife Susan Alexander Kane, to try to uncover the identity of Rosebud.
Explanation:
Susan Alexander Kane, the whiny and demanding Kane´s second ex-wife, is first interviewed by Thompson, is not willing to talk about how the more he manipulated her, the further their relationship deteriorated, ending up leaving him, now she is drunk and works as a dancer and singer in a tarnished bar, she claimed she’d never heard of Rosebud before, but this interview reveals an arrogant, thoughtless and unable of giving love aspect of Kane.
Thompson got Mr. Bernstein, Kane´s friend and employee own version on him; this Jewish man, was the only one loving Kane unconditionally and wanted him to be happy. He considered him as an abandoned, lonely boy who grew up to be an isolated, needy man.
Jedediah Leland, admired Kane's idealism when they started working together in the newspaper, but as Leland became more ethical and Kane became more unscrupulous, morally bankrupt, with questionable morals and paternalistic attitude, he escaped from Kane.