The authorities are still trying to figure whether the dead brother had a homemade bomb strapped to his body when he was killed, two law enforcement officials said.
The manhunt for the surviving bombing suspect sent the Boston region into the grip of a security emergency: residents of the city and the surrounding area were urged to stay indoors, as hundreds of police officers conducted a manhunt. All public transit services were suspended.
Col. Tim Alben of the Massachusetts State Police, said investigators believed that the two men were responsible for the murder of a Massachusetts Institute of Technology police officer and the shooting of an officer with the Massachusetts Bay Transportation Authority, the region’s transit authority.
“We believe these are the same individuals that were responsible for the bombing on Monday at the Boston Marathon,” Alben said.
Below are Twitter reactions to the Boston bombing terrorists.
NPR says nervous police have told people approaching checkpoints “Put down your cell phone, or we’ll shoot”–in Boston!!
— Nicholas Kristof (@NickKristof) April 19, 2013