While trustworthy, perhaps she's trusting in rumours that she has heard (about the 2nd bomb being detonated). Actually, she even acknowledges that she's going by "what she heard from others". Kind of like people "hearing" that people were resorting to cannabalism in New Orleans. It's easy to get caught up in something when you're as close to it as she has been. I appreciate her info, but am taking the "2nd bomb being detonated by the bomb squad" with a grain of salt until there is another source.
The detonation of a second explosive device was reported on MSNBC, and several other smaller news outlets earlier in the evening... Several are linked to on this thread - back about 500 posts or so.
But you'll notice that she specifies the source of each report, and all I can think of were eyewitnesses. That is, there was only one link between us and the eyewitness to the event.