The shooter had an AR-15 assault rifle , a pistol , loaded magazines , and a large knife . Authorities have found no motive and no connection between the gunman and his victim . They identify the shooter as 15-year - old James Padgett . ` `` That 's what we were waiting for , '' ` The country has to do some soul - searching , '' Obama says .
The shooter had an AR-15 assault rifle , a pistol , loaded magazines , and a large knife . Authorities have found no motive and no connection between the gunman and his victim . They identify the shooter as 15-year - old James Padgett . ` ` The country has to do some soul - searching , '' Obama says .