Question: Im Not Ashamed is a biographical drama film, based on what massacre involving two American spree killers Eric Harris and Dylan Klebold, who killed 13 people and wounded 24 others? 
Sentence (from "I'm Not Ashamed"): I'm Not Ashamed is a 2016 biographical drama film based on the journals of Rachel Scott, the first victim of the 1999 Columbine High School massacre in Columbine, Colorado.
Relevant evidence: Yes