CNN This Is Life With Lisa Ling November 22, 2021 05:23:00
>> this is obviously really, really horrible to see. what was going through your mind when you heard the screams, you saw the car? what did you think was happening? >> i couldn't imagine my kids being down there. it was not something i wanted to see. and the people that watched the video can't believe it. a little freaked out. >> joining me now from cambridge, massachusetts, is cnn senior national security analyst ju julia kayem. it's more what we don't know than what we do know in this situation. what is your read on what we know so far? >> the police department feels confident say thing is i...