three? what do you mean? reporter: that s what kids say to parents, you let me do a bad thing, it s your fault. i didn t say they let us do a bad thing. i said they let us sleep and hang out at the same spot. they did, beside what anybody believed. you will parce that argument? to the day i die, that s true. reporter: i want to know, that s on you, what was going on in your head to make you want to do it, to participate in whatever way you participated, to get whatever thrill? what was the thrill? what was it? i don t think there was a thrill. reporter: if there is no thrill, why d you do it in. there is no thrill in watching women die like that. but i m going to go back to it again and again, it was my anger issues that i have from everything that happened while we were on parole and probation. reporter: we may never know exactly why jerree was killed or martha or josephine or quinna. but there is one more mystery
martha or josephine or quinna. but there is one more mystery hiding somewhere in this mountain the final mystery. coming up with to me, she s an angel in disguise. an angel that carries a badge and a gun. .an angel whose job isn t done. he looks at me and he goes, you re missing one. when dateline continues. advil presents a big breakthrough in pain relief. advil liqui-gels minis. a mighty small pill with concentrated power
prayed, and, yes, bought another rosary. why is it so important to give jane doe a name? to you personally. i just think because she s so helpless. you re on the street, you re working as a prostitute. and you run into steve gordon and frank cono and your last hours on this earth are horrific. and then they discard you like trash. trash. detective trap is still haunted by trash. and that keeps bringing her mind back here. even though it is a landfall, it is quite peaceful when it s quiet. somewhere under here, in addition to kiana, josephine, march than, jeree, there was
will have an anklet, a gps monitor. reporter: she asked where any of those here where jerree placed her last phone call or here where she wound up with a dumpster. you find the same locations, you are getting somewhere? mm-hmm. reporter: she ran the search. what were the chances she got a hit in both locations? she called detective trapp. there s only one person. she says, i know him. i says, who? his name is frank canno, he s a sex offender. reporter: he pleaded guilty to committing a lewd act on a minor. now, did his monitor put him near the places those other three women, according to phone records, made their last calls? quinna, josephine and martha? one by one the detective got the
coordinates. reporter: an every intersection for that date and time that they gave me, frank canno came up. reporter: wow. for every single intersection. i was shocked. reporter: but something about that man, frank canno he had a buddy. and she had run into them both. i mentioned, i do know he has a friend, stephen gordon. reporter: steven gordon, he s done time for molesting a minor and later kidnapping. he and canno were inseparable, apparently. once again, detective pulled up the gps coordinates to check the place martha was last seen in santa ana, and no gordon. not there. when she checked locations for quinna and josephine, there he was. so why not at the first location? she checked the record and