say, a former justice of the peace named eric williams who was fired in a corruption probe and prosecuted by the two men who are now dead. cnn s george howell live from kaufman, texas, this morning. george, tell us about this person of interest. reporter: christine, good morning. cnn spoke with his attorney david sturgi, and we learned that investigators met at a local denny s here to take swab samples from williams hand to test for gun residue. at this point, cnn does not know what the results of those samples revealed to investigators, but david surgi tells us his client did cooperate voluntarily because he has nothing to hide. it s important to put this in perspective. williams may be one of several people of interest that investigators are looking into that these men hasse and mclelland may have prosecuted over the years. and there s the possibility that the aryan brotherhood of texas