结束了：波士顿爆炸案二号嫌犯被活捉 （两兄弟中的弟弟，19岁）

[councilor]

http://www.cnn.com/2013/04/19/us/boston-area-violence/index.html?hpt=hp_t1

'CAPTURED!!!' Boston police announce Marathon bombing suspect in custody

 

[iChinese]

Great.

 

[ford]

动机是什么