July 20, 2012 4:26 pm Flags Lowered to Half-Staff in D.C. President Barack Obama orders flags to be flown at half-staff to honor the victims of the mass shooting rampage in Colorado. Local 1:56 Dunbar students return to school after student shot through window 1:27 1 dead, 4 hurt in Suitland crash 3:27 How the pulley system helps first responders make rescues 0:24 1 killed, 23 others hurt in Maryland party bus crash 1:05 Court docs reveal moments leading up to Dunbar High School shooting that hurt teen