There have always been fringes in every group that will kill for their cause, but we rarely extrapolate beyond their group membership to make generalizations based on religion, ideology or color. But if we find out tomorrow that the bomber was a Muslim, then I don't think we can say the same. And that's a problem.
I weep for the families and friends for those immediately affected and for those whose lives and memories have forever changed. But I worry, especially after incite-ful rumors that automatically point the finger at (an) international terrorist(s), who, is/are in the imaginations of those easily deluded, brown-skinned.