wrong police department in the online court system. after three days of waiting for the background check, the south carolina gun shop legally used its discretion to sell roof the gun, even though his status was still pending. senate judiciary chairman grassley said in a statement quote it's disastrous that this bureaucratic mistake prevented existing laws from working and blocking an illegal gun sale." but for the family of one charleston victim surprise and understanding. >> i thought being that it was a fbi check that they were very thorough. i was surprised they weren't very thorough. and so -- but i know people make mistakes. >> reporter: and there are already calls on capitol hill to make changes. senators chris murphy and senator blumenthal are calling on president obama to take some executive action. they want changes that would stop the gun dealers from being able to proceed and to sell weapons from people fred if