Susan Tuthill was once hailed as an outstanding rookie on the White Bear Lake police force. Now she's a disgraced former cop at the center of a harassment investigation for the second time. Tuthill has been charged with stalking a former boyfriend and his new love interest -- about five years after being fired by White Bear Lake police amid allegations she sent threatening letters to a previous ex-boyfriend and his new girlfriend. The charges came after the 46-year-old Cottage Grove woman reported she was the one being harassed. But investigators didn't buy it. "For being a former police officer,...