this is wasatch county along the banks of the provo river. knows the river well memories. >> i was a sheriff, you never expect a call such as that. minutes. >> it was a december morning in 1995 when then deputy todd boner. was called to the banks of the river. it was a real life whodonit. cold. there are very few murders in wasatch county. >> probably one of the artest cases i've ever had to deal with in my life. >> back in 1995. crystal's mother said she left the area and started working as a prostitute. but bonner was determined to get her justice. >> there hasn't been a day gone by that i hadn't thought about her, and the suspect was out there possibly hurting someone else. >> bon ner couldn't catch any breaks. >> we didn't have the technology to move forward with the dna. >> for more than 15 years the case was cold. but finally, thanks to new technology, schaeffer sheriff bonner caught his break. >> i learned about touch dna. wanted to come up with something. >> he assigned the case to brian gardner. >> with the advent of touch dna possib

. >> in the shadow of the wasatch mountains, just south of salt lake city, lies utah state prison, or usp. originally built in 1951, this enormous institution has grown to cover over 680 acres. >> i've been at the utah state prison for over 25 years. and during that time we have gone from 1,200 inmates to almost 4,000 here. >> warden clint friel is tasked with the responsibility of running seven different facilities that house every variety of inmates. from gang units, to female offenders to death row, usp holds it all. the facilities at usp have earned their monikers from the surrounding mountain ranges with names like wasatch, oqirrh, timpanogos and uinta. building uinta-5 houses the prison's receiving and orientation, or r&o. >> uinta-5 is probably a time when they are most afraid. it's when they first hear the slamming of the doors, see the officers. and it can be a very difficult time for the inmates. >> after 20 years in the corrections business, lieutenant dale whitney knows that the first few moments with an inmate can be the most dangerous. >> we don't know when these guys ca

. >>> on their first morning of shooting at utah state prison, the "lockup" crew entered the wasatch "a" cell block, home to some of the prison's most violent convicts. we met a group of inmates playing cards and talking about who really runs the prison. >> guards don't run this. it's all run -- >> by the inmates. they pretty much tell what goes on. a guard does your section but inmates pretty much, if they don't get along, they force them out. >> or they'll get moved. >> sergeant danny herring was one of only two officers assigned to manage the 95 men on wasatch "a" that morning. >> yeah, they can take the block, but they're not going anywhere. what are they going to do. that doesn't really bother me. i don't have a control issue that way. they let us control and manipulate how they live and what they do. >> they got their rules, we got ours, you know? >> there's a code of conduct in here that you got to follow, if you want to, you know, make your time easy, you know. you don't rat on people. there's all kinds of stuff you don't do. >> that code of conduct is the convict code. and t

not only across colorado, the wasatch will get a little bit of this.e winter weather advisories and freezing rain advisories extended off to the east. dallas, some problems for the commute tomorrow morning. through the day, icing conditions are a concern. stretching into alabama and mississippi again. watch the freezing line. the snow drop down. ice will be an issue. across dallas, back through san angelo. by the way, daytona 500. looking good. >> this weather report brought to you by ashley furniture home store. if they sold director's chairs, i bet you they're higher quality than these right here. >> you know what? "birdman's" got nothing on our weatherman. >> just before we wrap up. i want to point out that ron claiborne has dressed partly for the red carpet, with a suit, but also for the snow with the boots that he's wearing right now. this is like a sartorial version of a mullet. business in the front. party in the -- you pull it off. you pull it off. nobody wears it like you. >>> here's what's coming up on "gma," how neil patrick harris is hoping