WASHINGTON (CNN) -- Former White House aide I. Lewis "Scooter" Libby has been found guilty on four of five counts in his perjury and obstruction of justice trial. Libby, 56, faces a maximum sentence of 25 years in prison and a fine of $1 million. Libby was convicted of: obstruction of justice when he intentionally deceived a grand jury investigating the outing of CIA operative Valerie Plame; making a false statement by intentionally lying to FBI agents about a conversation with NBC newsman Tim Russert; perjury when he lied in court about his conversation with Russert; a second count of...