Mario Joseph Gabelli Was Born on the 19Th June 1942, in the Bronx, New York City Usa, of Italian Descent. He Is a Financial Analyst, Stock Investor, and Investment Advisor, Who Is Probably Best Known for Being the Founder, Chairman and Ceo of Gabelli Asset Management Company Investors (Gamco Investors), a Brokerage Firm. His Career Has Been Active Since the Mid-‘60S.