(San Antonio, TX)  --  A 38-year-old man is accused of threatening his former classmates on Facebook before their 20-year reunion.  Authorities say John Marshall High School graduate Jason Carroll Moss wrote on the class reunion Facebook page that he was going to seek vengeance on former classmates who had bullied him.  His posting also went on to mention the Columbine shootings.  He was arrested on harassment charges and allegedly told police he made the post because he did not want to be picked on at the reunion.