Saturday marks 25 years since the mass shooting at Columbine -- a shooting that took the lives of 12 students and one teacher. Recently, we sat down with a number of the families of the victims to get their perspective on the passage of time. Ashley Glader was 11 years old when her big brother, John Tomlin, died at Columbine High School. She remembers him as a teenage boy with a big heart. A boy with a strong faith. He often picked up his friends in his truck and took them to youth group. The truck is still in the family. More local videos here: https://bit.ly/2Pa0d1l Subscribe to NEXT: http://bit.ly/2eP1GwI Stay connected: 9NEWS Website: http://www.9news.com/ Facebook: https://www.facebook.com/ilike9news Twitter: https://twitter.com/9NEWS Instagram: https://www.instagram.com/9newsdenver/ Download the 9NEWS App: https://www.9news.com/appredirect/ Sign up for the 9NEWSLETTER: https://www.9news.com/email 9NEWS (KUSA) is located in Denver, Colorado.