texas. they are looking at eric williams who was fired in a corruption probe and reportedly had been prosecuted by the two men who are now dead, who were killed. we're talking about these two men. mike mcclellann and mark hasse. cnn's george howell is live from kaufman, texas, and george, an investigator. george, what can you tell us about this person of interest? >> reporter: well, cnn spoke with his attorney. investigators met at a place here in kaufman to take swab tests. again, this is something that we