timmah on 16 April 2013
Oh dear sweet lord! We have conspiracy theorists about this one? For what purpose, pressure cookers need to be banned so they needed an excuse? For God's sake, it's in the middle of Boston at a huge event, why would anything be faked, and how would they make all those people believe it? I have personal friends that were nearby and can tell you that there's no fakery needed. Looks like a bloody towel that somebody off camera grabbed while the shot was blocked, you're bound to find some kind of strange illusion in hours of live feed.
