domenick? >> reporter: we have fascinating developments here. believe it or not, during the fbi's investigation into the disappearance of susan powell, that child pornography was found on the computer of josh powell, her husband. let's remind you in this case that dates back to 2009. we can show you some pictures of powell and the family there. he was a person of interest in the investigation into her disappearance. he actually set light to his home together with his two sons, ages 5 and 7 in the photo there. all three of them died in that fire. both kids had actually been dropped off by social services. and the attorney for the parents are saying had it been known that the fbi had discovered the child pornography images on josh powell's computer, then the authorities never would have handed the kids to him. and brenna, the attorney for susan powell's parents, talked to fox news a short while ago and expressed utter disbrief at the latest revelation. >> why there was never any information about this to other agenci agencies, to us, to the public