Sam A a: https://www.cnn.com/2023/05/15/tech/sam-altman-openai/index.html

Sam B a:https://www.cnn.com/2022/05/13/investing/robinhood-sam-bankman-fried-ftx/index.html

Sam A b: https://www.cnn.com/2023/11/17/tech/sam-altman-departs-open-ai/index.html

Sam B b: https://www.cnn.com/2022/11/11/business/ftx-ceo-resigns/index.html