From the WSJ: U.S. authorities on Friday locked down the
Boston area in the hunt
for one of two brothers of Chechen background suspected in Monday's Boston
Authorities identified one suspect as 26-year-old Tamerlan Tsarnaev, who was killed in a confrontation with police in
Mass., according to a U.S.
A manhunt was on for the second suspect, identified as Dzhokhar Tsarnaev, 19 years old. Both Chechnyan Muslim brothers were believed to be involved in the fatal shooting of a Massachusetts Institute of Technology campus police officer during a chaotic series of events Thursday night….