the last .7 of the mile, one week ago today, of course, when the bombing shut down the course. >> so today, at the time that the first blast hit, one week ago, she will finish her marathon run and she's asked others to join her. cassie taylor, today, right now, joins us. why do you feel the need to do this? explain to us. you more than finished the marathon. even though there was .7 left, you sprinted two or three more miles looking for family and friends. >> a lot of people are in a similar situation as i am. and, of course, the first and foremost is honoring the victims and thank people that protect our country every day. but we also don't want to lose sight of what the marathon spirit is. and the majority of the people that didn't get to finish this race are running for a charity. we're not running to finish on our own. we're running to represent important people and causes and incredible stories all around the country. and we don't want that to be lost in the chaos that is