I am pretty sure it was Murtha. He persuaded one of his collegues to support him who later said that if he'd known the truth, he would have gone against him. Pretty ugly.
"during the ABSCAM investigation in which Murtha was named as an "unindicted co-conspirator", but was never charged, because he testified against the other defendants. He was eventually cleared by the House Ethics Committee.[1]"
Now granted this is from Wikipedia so it could be putting a good spin on it. Now I know that a John Murphy of NY was indicted.