It's a story Six On Your Side has been following for years; the case of an Idaho Falls man convicted of a murder more than 15 years ago.
Now, new DNA testing reveals there is no DNA evidence connecting the victim to the man convicted of the crime.
On June 13th, 1996, 18-year-old Angie Dodge was raped and murdered in her Idaho Falls apartment.
After more than 40 hours of questioning, Chris Tapp confessed to being involved.
"He was offered a deal. If he said he was part of this and could name the other guy, the guy who left the DNA, then he could do no time in prison. He had a complete immunity deal and as a young man, it seemed like a good deal to him. He thought he could name the perpetrator and he guessed," said Greg Hampikian, the Director of the Idaho Innocence Project.
Tapp Guessed wrong, and was sentenced to 25 years to life for the crime, but even the victim's mother didn't believe Tapp murdered her daughter.
Carol Dodge worked with the Idaho Innocence Project and Tapp's public defender to overturn his conviction.
The lead lawyer on the case received permission to do some DNA testing and the results, according to Hampikian prove the wrong man is behind bars.
"It is a person we have not been able to identify we have been trying very hard. The police have obviously been trying very hard. but the fact of the matter is, Chris Tapp's DNA isn't anywhere there,"said Hampikian.
The new evidence allows Tapp to go to court for a hearing to try and get his conviction overturned, but he isn't packing his bags just yet.
"I think hope is a very difficult thing for all of our clients. We are cautiously optimistic. We think the evidence is in our favor. He knows the evidence is in his favor and we think we will get a fair hearing," explained Hampikian.
While freedom may be on the horizon for Tapp, Carol Dodge is left trying to find the person she thinks raped and murdered her daughter more than two decades ago.
"She told me last night she was up pacing around sure there is new technology that we can use to actually identify who killed her daughter," said Hampikian."She's a wonderful person. A real example to all of us to keep working really really hard to finish this case."