Saint Paul Police officers arrested a teacher at St. Paul elementary school Thursday for probably cause of criminal sexual conduct with a 9-year-old. Mathew Christopher Curran, 52, was arrested without incident outside Aerospace Magnet School on St. Paul's East Side, according to St. Paul police. Just before 10 a.m. Thursday, school officials learned of allegations sexual contact between Curran and a 9-year-old student and contacted police.