This month, Americans will turn the pages on their calendars and find themselves at the fifteenth anniversary of the 9/11 attacks. For Mary Fetchet, the commemoration will be about more than the day her 24-year-old son, Brad, died in the Twin Towers. On the day the World Trade Center fell, Mary was a clinical social worker employed in Milford, Connecticut. She had attended a conference where the mother of an Oklahoma City victim spoke about her personal loss and the aftermath of the 1995 terrorist attack on the Alfred P. Murrah Federal Building there.