Could very well me a lone islamic nut wanting to show off for Al Qaeda..trust me, that “Person of interest” IS their #1 suspect..they are just using protocol so that he won’t demand his Miranda rights..they are searching right now an apartment complex in Revere..I have a feeling this “person of interest” lives there
More than likely, it was a targeted attack. The WH knew the Boston Marathon was a target.
The more people involved in the operation, the more likely the noise will be picked up.