In the first major terrorism attack in the United States since 9/11, two pressure-cooker bombs exploded near the Boston Marathon finish line April 15, killing three people and wounding more than 200 others. Three days later, hours after the Federal Bureau of Investigation released surveillance photos of two suspected bombers, Tamerlan and Dzhokhar Tsarnaev led authorities on a hunt across Boston. Tamerlan was killed during one shootout; his younger brother, Dzhokhar, was wounded, and was later found hiding in a boat in a backyard.
Dzhokhar is expected to go on trial next year, charged with use of a weapon of mass destruction, a capital crime. Intelligence agencies and the FBI failed to prevent the plot despite tips from Russian authorities that the Muslim brothers had been radicalized. Terrorism analysts are studying what may have caused the brothers to allegedly transform from young party-throwing American immigrants to suspected bomb-toting terrorists willing to attack their adopted country.
– Mark Clayton, Staff writer