Very sad situation. My heart felt condolensces and prayers go out to all the injured. When it comes to suspects and motivations, Has anyone mentioned anything about north korea? Although i don't think this is something they would dare do. Sleeper agents?
They're mostly talk and little action, so I doubt they had anything to do with it.
To me, it honestly feels like a domestic terrorist, if it was a bigger group, they'd be claiming responsibility the second it happened.
Anyways, it's not the time or place for that.
As for the people of Boston, my heart goes out to everyone who was effected by this horrible act and I can't wait until the person(s) responsible are brought to justice.