the predator who murdered holly. >> in your opinion, what is the strongest evidence implicating terry brittur county. he's the one that would be willin' to do this. >> reporter: aside from his notorious rap sheet, you'll recall that britt had a wafer-thin alibi, and the cadaver dogs alerted on his car. >> who has human decomposition on two of their cars and four of the tools in their shed? who has that? zach didn't have that. shayne austin didn't have that. >> reporter: dicus makes his case to the jury. >> terry britt has black hair. he weighs 200 pounds and he's six foot tall. so i got onto him because, number one -- he is the exact size of what our witness say the abductor looked like. he's capable of kidnapping her. >> reporter: on cross examination he is forced to admit he knows nothing of developments in the case in the years since he left the tbi. >> but you can't tell us anything about the three and four years after that. >> you're right. i don't know what y'all have done since then. >> reporter: and now the showstopper. here's terry britt himself brought in straight from the peniten

case for two years not sitting in the jury for ten days, two years who said he still believes that terry brittmmitted the crime. that is reasonable doubt. secondly, credibility. you have a former texas bureau of investigations saying i can tell you, i looked at this, i'm a prosecutor, it's not zachary adams. you've got a bunch of jailhouse snitches who are meth addicts. >> julie: let's talk about the suspect, let's say zachary adams isn't the one. zachary adams is the first to face trial, trial date hasn't been set yet for his brother dylan adams. and then there is jason who hasn't been given a date yet. he is the prosecution's star witness, he's described in graphic detail how he was asked to help dispose of her body after she was kidnapped by adams. his brother dylan and another man. jane austen by the way, here is another one. he is no longer in the mix. why wouldn't he go to trial with testimony like that? >> another reason you have to look at his credibility, he's cut a deal, the deal has not been disclosed. we know he is just trying to save his own hide, that witness has had his credibil