Three more suspects were taken into custody in the Boston Marathon bombing case, including two college friends of Dzhokhar Tsarnaev who came to the U.S. from Kazakhstan, officials said Wednesday.
Investigators face big challenges now as they probe deeper into the Boston Marathon bombings. Now, they want to know why it happened and if others were involved.
Boston Marathon bombing suspect Dzhokhar Tsarnaev lay hospitalized under heavy guard Saturday as people across the Boston area breathed easier and investigators tried to piece together the who and why of the deadly plot.
Now that the second suspect, 19-year old Dzhokhar Tsarnaev has been captured, investigators are now focusing on one big question – why?
Local Experts Weigh In On Mentally of Alleged Boston Bombers and history of their native country.