 Pierre Thomas at ABC reports the FBI lead investigative agency on this is saying that Crooks is a lone wolf, nobody else involved. This appears to be a lone wolf situation. So far, no specific ties to any organization or any other individual. There is a computer, also a phone that they are trying to exploit. There is misinformation that they believe that this young man was consuming. They're trying to get a better understanding of that. But at present, no clear motive.