Why should your audience care about this topic?What future implications resulted from this event?

Boston Marathon bombing

Summarize the event
Write 2-3 or more sentences for each of the following:
What happened?
Who
What
Where
When
Why.

Significance (no sentences limit).
Why should your audience care about this topic?
What future implications resulted from this event?

Conclusion (no sentences limit)
What were the lessons learned from this emergency or disaster?