Also . . .

U.S. Rep. Christopher Cox (R-Newport Beach) has called on the FBI to investigate the contract-style killing of Orange County businessman Paul Tatum in Moscow earlier this month. . . . Foster City, Calif.-based IDG Books Worldwide Inc., which publishes the “. . . for Dummies” series of books, named Steven Berkowitz president and publisher. . . . Los Angeles-based Times Mirror Co. said that it has invested in ListingLink, a real estate listing service on the Internet, for undisclosed terms. . . . Verdi, Nev.-based Boomtown Inc. shareholders have approved a merger with Inglewood-based Hollywood Park, the California-based operator of card rooms and horse and dog tracks.