Boston Firefighter James Plourde carries an injured girl away from the scene. (Ken McGagh/AP) Boston Firefighter James Plourde carries an injured girl away from bombing scene. (Ken McGagh/AP)

Twenty-four hours ago, tragedy befell Boston. Two bombs in two separate locations exploded near the finish line of the Boston Marathon. We know that they were pressure-cooker bombs. We know they were packed with projectiles, such as ball bearings and nails. We know that more than 175 people were injured. We know Martin Richard, 8, and Krystle Campbell, 29, died in the attack.

But here’s what we still don’t know: We don’t know who did this and why.

“What we don’t yet know, however, is who carried out this attack, or why; whether it was planned and executed by a terrorist organization, foreign or domestic, or was the act of a malevolent individual,” said President Obama said late this morning. “We want to know who did this and why was it done,” said Speaker Boehner today.

Yes, we must know the who and the why. After other major tragedies the offender was apprehended (Aurora, Colo.) or killed himself (Madison, Wisc. and Newtown, Conn.). In the case of the attacks of Sept. 11, 2001, the identities were known. While it took a decade to bring the mastermind to justice, justice was done. 

I know it will take some time to identify the marathon murderers. But the longer we go without having those questions answered the more unsettling and unnerving the bombing of Boston will become.

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