CNN is reporting that one of the victims killed was an 8-year-old boy. The Wall Street Journal had reported that as many as five other unexploded devices were found around Boston, but investigators now doubt that they were actually bombs.

But, alas, there's a catch: Even though Mutai beat the previous record by 57 seconds, because there was a strong tailwind on a downhill course, Mutai's time won't be recognized. In fact, 2011 Boston Marathon runner-up and fellow-Kenyan Moses Mosop also surpassed the world record, finishing only four seconds behind Mutai.