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. Sean Graves nearly died at Columbine High School. He was with two of his best friends when he was shot. One of them died. Sean says he thinks of Daniel Rohrbough daily. This year in particular he couldn’t help but wonder what Dan would be doing with his life now. 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.