Phliip Pagano, who heads Chicago's rail system, walked in front of one his own trains Friday morning in an apparent suicide. Pagano, Metra's executive director, was on leave while his finances were under investigation. He had several papers on him indicating suicide, including a note and a copy of the Metra instructions on how to handle train service after a suicide. "It's a very, very sad day," said Metra board member Jack Partelow. The attorney general's office launched a criminal probe into the director's dealings on Thursday.