You've got to look at these photos!
I just found this page (lots of info, check it out!). Am I hallucinating, or doesn't Krystle's mother look a lot like this woman here, who appears to be an eyewitness to both the Boston Bombing and the Watertown shooting? This just gets weirder and weirder, folks ...
Here's a video that links the above two women with a character from Sandy Hook. Someone from the comments section at nodisinfo.com speculated that these "characters" were played by Barabara Starr, CNN correspondent to the Pentagon. Who knows? I wouldn't put it past CNN, that's for sure!