Before she was shot in the head in cold blood, 17-year-old Rachel Joy Scott was asked by the two killers, "Do you still believe in your God?"

She replied without hesitation, "You know that I do."

That dastardly murder took place at Columbine High School in Columbine, Colorado on April 20, 1999. Scott was the first of 12 students and one teacher who were gunned down by students Eric Harris and Dylan Klebold, who specifically targeted Scott because of her overt Christian faith.

Seventeen years later, contemporary Christian music artist Jeremy Camp wrote a Christian anthem in honour of Scott, The Christian Post reports.

The song "I'm Not Ashamed" is the title track of a new movie of the same title, which is set for release on Oct. 21. The title of the movie and the song is taken directly from Scott's writings.

The movie is based on Scott's journals, which detailed her honest and heartfelt accounts of her life.

In one of her journal entries featured in the film, Scott wrote: "I've always been drawn to hands. I think it's because it's the way we touch people. If one person could go out of their way to show compassion, it could start a chain reaction."

Also written in her journal was a heartfelt line from one of her prayers. "Father, use my life to touch the world and let your light shine through me," she wrote.

"Rachel wrote that she would one day touch the lives of millions, and we're honoured to help make this dream a reality," said Benny Proffitt, executive producer of the movie and founder of the youth organisation First Priority.

Scott's mother, Beth Nimmo, serves as executive producer of the movie, which was filmed in and around Nashville, Tennessee.

The cast includes Duck Dynasty's Sadie Robertson, newcomer Masey McLain as Rachel, Ben Davies ("Courageous"), Jennifer O'Neill ("Summer of '42") and Jaci Velasquez ("Let The Lion Roar").