 Now, we know that the gun Crooks used in the shooting was legally purchased. It was purchased by his father. The FBI has said as much publicly. Now, his father told investigators that it was his understanding on Saturday that Crooks was taking the gun and going to the shooting range with it, and we know that he belonged to a shooting range. Now, we knew investigators also had found explosive devices in Crooks' car. I'm now told that the two devices in that car that were found had radio controls to detonate them remotely, and that investigators found a transmitter on Crooks' body on the roof where he was killed.