into another county. >> he also had nothing on but underwear, basically. >> medical examiner, joseph burtonin a sheet. i'm the one with the shirt off. >> dr. burton ruled both boys had been asphyxiated. >> we had no history of either one of those boys swimming in the south river in their underwear. >> other bodies were washing up in the chattahoochee river, to the west and north of atlanta. five victims in the river in the next six weeks. >> i said, you know, if i was doing that i would be throwing them off the bridge. >> fbi agent, he grew up on a river in tennessee and he knew if something, to float downstream it had to be dropped in the middle of a river. he suggested the bridge stakeout. >> he looked at remote places, dark places. we believed it would be at nighttime as opposed to daytime. >> the fbi and police began night watches at 14 bridges over the chattahoochee and south rivers. stakeouts were to last four weeks. nothing until the very end. >> we, at that point, were ready for that to be our last night. and wayne williams showed up that night. >> just before 3:00 a.m., the station