POCATELLO, Idaho -

September 2006, two Pocatello high school students murdered their classmate. Tory Adamcik and Brian Draper were found guilty and sentenced to life in prison without the chance of parole. ]

Now, the story of Cassie Jo Stoddart will air in prime-time this weekend with a documentary. The Stoddart family said they chose to go into the national spotlight to share a side of a story that never got told.

Many in Pocatello said the documentary will dig up the past but for the Stoddart family, they said they hope sharing the story of their daughter, Cassie, will prevent this horrific crime from ever happening again.

"She?d be 20 years old. She'd probably be in college, and I don't get to see any of that. It's gone. It was taken away. Pulled out right from, I didn't even get to say goodbye to her,? said Anna Stoddart, Cassie?s mother.

Anna Stoddart said she always have a void in her home and her family since her daughter was killed by two classmates who called her their friend.

"It?s hard for all of us every day, but we're trying to go on with our life because that is what she would want us to do. I just wanted to tell her part of the story,? said Stoddart.

Last fall, film crews from MSNBC came to Pocatello to interview Anna and investigators. Detective Andy Thomas said the documentary isn't only a tribute to Cassie, but also to those who helped solve the case.

"There were hundreds of investigators and lab people and citizens in the community that were coming forward to help us,? said Thomas, a detective with the Bannock County Sheriff?s Office.

Brian Draper and Tory Adamick were convicted with planning Cassie's murder. They planned the murder inside Pocatello High School and videotaping a majority of the events leading up to the crime.

"I don't want to be on TV for something so heinous, but on the other aspect, it is kind of nice to also know that we brought these two guys to justice,? said Thomas.

During the trials, it was said that one reason they committed such a horrible crime was for fame. Anna said that's not the reason she helped make the documentary.

"It wasn't about the publicity or anything like that; it was just about getting her story out. And if I can save another family from going through what we've been through, that is all I want,? said Stoddart.

Both investigators and the Stoddarts said they weren't paid for their interviews. They did it because they wanted to tell a story. They also said they aren't sure how the documentary will play out because the crew hasn?t shared many details.

The Stoddarts said they'll be watching together as a family. The documentary lasts one hour and it airs on MSNBC beginning at 8 p.m. Sunday night.

For clips and information on the documentary, click www.msnbc.msn.com/id/3036750