RETIRING. John Lawn, 54, as administrator of the federal Drug Enforcement Administration; in Washington. During five years as the nation's top narc, the aggressive Lawn pressured Mexico to investigate the 1985 murder of DEA agent Enrique "Kiki" Camarena Salazar, which the U.S. claims was sanctioned by high-level law-enforcement officials. Lawn will become a vice president of the New York Yankees, handling all operations except those concerning players.