Carlo Cavalier News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Boulder County first responders attended an active shooter training Wednesday morning at Arapahoe Ridge High School

Nathan shultzIan hillBrendan sullivanArapahoe ridge high school in boulder onBoulder county sheriff officeArapahoe ridge high schoolKing soopersBoulder valley school district safety officersBoulder county active shooter taskBoulder countyCounty active shooter task forceStaff photographerCarlo cavalierBoulder county sheriffSecurity brendan sullivanCommunications officer randy barber