coming at him, we seen him. coming at him hard. he was closing only very hard very fast. the officer was able to use restraint and in this particular case it turned out to have a geending. no one was hurt. it does not mean that in each and every case. this is where officer versus to use their judgment a. half a second could make all the difference in the world for his or her own life. cedric. good to have you on the set. absolutely. tanks, chris. thousands of runners, maybe a millions of fans from hopkins to boyleston street for the 100 account running of the boston marathon. it comes a day before the sentencing phase begins for the man the convicted marathon bomber dzhokhar tsarnaev we ll have a live report from boston next. we all eat foods that are acidic. most of the time people are shocked when we show them where they re getting the acid and what those acids can do to the enamel. there s only so much enamel on a tooth, and everybody needs to do something about it now