Explosions rocked finish-line of Boston Marathon; 2 killed and scores injured:
NBC News — Boston police are guarding a “possible suspect” who had been wounded in the blasts, federal officials tell NBC News. Local hospitals confirm dozens admitted with injuries as witnesses report “unspeakable horror.”
Photo/caption by NBC News — An explosion goes off near the finish line of the Boston Marathon on April 15. Two explosions struck the marathon as runners crossed the finish line on Monday, witnesses said, injuring an unknown number of people on what is ordinarily a festive day in the city.