Motive for the attack is still under investigation but Sheriff Robinson pointed to a disagreement the shooter had with a speech and debate coach who has yet to be named by officials.
Arapahoe High School
Listeners say they were enlightened and moved by the coverage, but we may have missed the mark on another story.
Claire Davis, the 17-year-old student shot in the head during the attack on Arapahoe High School earlier this month, has passed away from her injuries.
Brett Stewart describes his experience during the shooting and thinks returning to school after the New Year will be difficult.
Students, faculty, staff, and nearby residents continue to adorn a fence around Arapahoe High School with flowers and momentos wishing Davis well.
Slideshow: Students, faculty and area local residents have erected a makeshift tribute outside of Arapahoe High School to offer support for 17-year-old Claire Davis who was critically wounded by a student gunman last Friday. READ MORE
Sheriff's preliminary investigation also clarifies what happened during the 80-second attack.
Colorado Governor stands behind the gun control laws passed by the legislature in the 2013 session but welcomes suggestions for improving or changing current Colorado laws.
In the wake of last week's shooting at Arapahoe High School, a trauma expert who's child was a student at Columbine during the shooting in 1999 offers advice and guidance.