Vigils are held for the Boulder shooting victims as the gunman's first court appearance is expected Thursday
Hospital official resigns after Covid-19 vaccines were improperly distributed at Trump Tower in Chicago
The Colorado suspect allegedly used an AR-15-style pistol. Here's how it differs from an AR-15-style rifle
A man drove through a crosswalk during a 'Stop Asian Hate' rally and authorities say they're investigating the incident as a hate crime
