Did the city of Denver's "failure to reasonably maintain" Red Rocks amphitheater cause rocks to fall on concertgoers in 2011? That's the question at the heart of an ongoing lawsuit
between the city and four people who were injured in the rockfall. The case is currently moving through the Colorado Court of Appeals, and each side has filed briefs detailing their arguments. Read them below.
See also: Fans sue Red Rocks over rockfall injuries