Tony Ressler, co-founder of Ares Capital, an L.A. investment firm, has expressed interest in buying Dodgers. Stanley Gold, chief of Burbank-based Shamrock Holdings, also has discussed a possible bid.Tony Ressler, co-founder of a Los Angeles investment firm that controls more than $40 billion in assets, has expressed interest in pursuing the Dodgers, according to two people briefed on the matter who were not authorized to speak publicly.