This is being treated as a terrorist investigation. It appears that the shooter was inspired by various extremist information that was disseminated over the internet. We see no clear evidence that he was directed externally. As far as we can tell right now, this is certainly an example of the kind of homegrown extremism that all of us have been so concerned about for a very long time.
Even as we hit their leadership. Even as we go after their infrastructure. One of the biggest challenges we are going to have is this kind of propaganda and perversions of Islam that you see generated on the Internet and the capacity for that to seep into the minds of troubled individuals.