May 10 (UPI) -- Wes Edens, the billionaire co-founder of Fortress Investment Group and an owner of the NBA's Milwaukee Bucks , was the target of a billion-dollar extortion scheme allegedly perpetrated by an ex-lover, the Wall Street Journal reported Sunday. A spokesman for Edens, 64, confirmed to the newspaper that the financier is the unnamed alleged victim in a federal indictment brought against Changli "Sophia" Luo of New York City. Edens, one of world's most successful global investment