Full Coverage
A DC Metro employee is killed trying to stop a gunman shooting at commuters, officials say
By Mary Kay Mallonee
D.C. Potomac Avenue station shooting: Metro worker killed, 3 hurt, police say
By Katie Mettler & Justin George
Gunman Goes on Rampage at DC Metro Station Leaving Worker Dead and 3 Injured
By Maggie More & Allison Hageman