d—Bear Stearns Cos. Chief Executive Alan "Ace" Greenberg—to hire Mr. Epstein. Mr. Greenberg did so in 1976. At Bear Stearns, Mr. Epstein worked for Michael Tennenbaum, a senior executive, selling the firm's analyses of stock options to clients. Soon, Mr. Tennenbaum learned that Mr. Epstein had padded his resume,