Billionaire investor Charlie Munger died Tuesday, just weeks short of his 100th birthday. Munger was vice-chairman of Berkshire Hathaway, and he was best known for his close partnership with CEO Warren Buffett. As WSJ’s Jason Zweig explains, Munger often played Buffett’s sidekick, but his investing expertise made him a celebrity in his own right. Further Reading: - Charlie Munger’s Life Was About Way More Than Money - The Secrets to Charlie Munger’s Success - Charlie Munger, Warren Buffett’s Partner and ‘Abominable No-Man,’ Dies at 99 Journal Swag: - ‘The Journal’ Merch shop