Anderson Cooper 360º: Police identify the five people killed in Colorado shooting

Five people were killed and 17 others wounded after a gunman entered Club Q, an LGBTQ nightclub, Saturday night in Colorado Springs, Colorado. Richard Fierro, an Army veteran, was at a table with his wife, daughter and friends watching a drag show. He tackled the shooter and “went into combat mode” when he heard gunshots. He joins AC360 to describe the moments he took the gunman down and got his weapons away from him.

Plus, investigators are still searching for answers more than a week after four University of Idaho students were found stabbed to death in their off-campus home. Paul Holes is a retired cold case investigator and host of HLN’s “Real Life Nightmare.” He tells AC360 he thinks the police know more than they’re revealing to the public.