>> i did not kill patrick baltizar or anyone else. >> did you ever meet patrick?> no, i did not. >> never been in contact with that kid? >> i don't even know a patrick baltizar. >> we offered to show the dna findings to the stepmother. sheila baltizar. >> please don't make me read it. >> oh, my god. >> so we told her what the fbi report said. wayne williams cannot be excluded as the source of those two hairs. she listened. then this. >> without a shadow of a doubt, i really in my heart believe that wayne williams killed patrick baltizar. >> next, trained to kill. >> were you trained in unarmed combat techniques? could you grab somebody bigger than yourself, put them in a choke hold? >> i'm sure there are other things in unarmed combat beside putting somebody in a choke hold. >> when we return to prison for other final interview with wayne williams, we had one question he was not expecting. what wayne had written about being recruited for espionage training as a teenager. at a secret government camp hidden in the woods near this north georgia lake where he was give