text:  Act Blue, which is a Democratic allied organization. Now, we also have new information on the gun. A law enforcement source tells our colleague, Kerry Johnson, that investigators believe the gun used in the shooting was bought by Crooks' father about six months ago. And also, at least one explosive device, one that was believed to be workable, was found in the suspect's vehicle. Crooks, of course, is dead. The Secret Service killed him when they returned fire.