FBI Director William Sessions said that those questioning the status of his agency's 4-year-old probe of corruption in Sacramento should "stay tuned," but the director declined to talk about whether the investigation will result in further indictments. Lawmakers have criticized the probe for raising suspicions in the state capital and continuing for more than a year without resolution. In the investigation, FBI agents rocked California's political establishment and revealed last August a complicated "sting" investigation in which special-interest legislation designed to benefit two FBI-sponsored fake firms was introduced in the state Legislature. Agents posing as company officials made campaign contributions to certain lawmakers, searching for illegal activities. Sen. Joseph Montoya (D-El Monte) has been indicted on bribery, extortion and money-laundering charges. Three others, including a Montoya aide, have also been indicted.