the family research council s headquarters. it happened around 10:45 this morning, police telling us an armed manmade negative comments about the organization s work. it opposes gay marriage and abortion rights before opening fire on the security guard. he has been identified as leo johnson. this is a photo of him taken to the hospital. johnson was shot in the arm yet helped others tackle the shooter. i would say the security guard is a hero as far as i m concerned. he did not allow the armed person past the front, so he did his job. reporter: the suspected gunman was identified as floyd corkins, ii seen being taken into custody. the fbi is trying to figure out what he intended to do and why. we can t confirm any connection at this moment. the family research council is housed in that building and the investigation continues to see what, if any, connection he had with that organization. reporter: investigators spent the afternoon interviewing corkins parents and gran