 It is surprising. And witnesses say they told police on the ground they saw the suspect with the gun moment before the shots were fired. So the question is, how could the Secret Service have not seen that? If witnesses saw that, how did this all play out? The FBI knows people have cell phone video, may have seen the shooter before the shooting, 20, 30 minutes before even getting up to the top of that building. They wanted all, they're asking anyone with information to call 1-800-CALL-FBI. Again, 1-800-CALL-FBI.