When Annasmom posts the full reports, it will be explained fully, but they contain two surprises for me:
1) The analysis reinforces what most of us believe about the two Georges. Brody was a master manipulator with an extraordinary ability to convince someone to participate in activities that they would otherwise not want to be involved with. Also, Waters had a fundamental need for approval that made him highly susceptable to manipulation. The combination of these two personalities equates to gasoline and fire.
2) The analysis points toward a capacity for criminal activity that is far beyond what we had previously thought. The general consensus among those who investigated the two Georges was that they may have been weird enough to have abducted Anna, but they would have had to have convinced themselves that they were doing "good" in the process. If I am reading the new analysis correctly, they seem to have a higher capacity for evil than previously thought. They would certainly have been able to be involved from a personality standpoint.