He became the second person ever to break the 13 - second barrier .
In Zurich Switzerland on August 16 , 1989 Kingdom separated himself from the others by surpassing the World and American mark of 12.93 set by Renaldo Nehemiah .
Kingdom became the second person ever to break the 13 - second barrier .
In Zurich Switzerland on August 16 , 1989 Kingdom separated himself from the others by surpassing the World and American mark of 12.93 set by Renaldo Nehemiah .