A woman now serving her third stint in prison for a 1996 fatal drunken driving crash was convicted Tuesday of her third drunken driving offense, which happened during a brief period of freedom earlier this year. Lori Kasten, 45, of Madison, was back behind bars on April 23, when she was arrested in a UW-Madison parking lot. Her blood alcohol concentration was 0.25 percent, just over three times the 0.08 limit for Wisconsin drivers without a previous drunken driving conviction.