April 17, 2013 7:02 pm Hazmat Crews Investigate Mail Facilities Hazmat crews went to mail processing facilities to investigate after ricin was detected in letters addressed to President Obama and Sen. Roger Wicker, R-Miss. News4’s Derrick Ward reports. Local 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 2:29 George Washington University president says pro-Palestinian encampment is ‘unlawful'
