park dietz the truth about his crimes. he continues to tell how he killed his first victim, 21-year-old lou ellen bur leigh. >> she was complaining that the ropes were too tight. i pulled over, loosened them up, and kept on driving. where i was going, i had no clue. i could have went straight, right, wherever, to find a place. i went right back up the barista where i knew how to go, i knew how to get there, and that's where it happened. >> the land surrounding lake bariesta is rugged, unforgiving terrain. >> what do you do, put the van in park? >> i parked it on a flat area. >> pull the panties off or cut them off? >> no, i didn't cut the panties off. i cut the bra off. she turned around, over a little hill, and i followed this dirt road all the way down to the bottom of the canyon. >> you're driving you're saying? >> no, no, walking. >> walking. >> dirt road has a horseshoe shape in it and right there is a little canyon that goes up the hill. it's full of boulders, big boulders, and that's where she is today. >> and then