Tell us what really happened in Boston. Why craft international was there and why they lied about the drills.

Craft international was at the Boston bombing before and after the bombings. Why were they there and never talked about on the news. Why need they say there were no drills when they said over loud speakers there was a drill going on? FBI said to only look at thier pictures because they were the only credible ones. If the FBI already spoke to the suspects then why did they ask us for our help to Identify them? We want answers