our lod d resilient noos sdrangor tra, maria m evyo iboston. neidonhe ochere from boston. former new kid joey mack intire was running in the marathon. he tweeted this moments after the bloms wenoff, there was an about five minutes after i e finished. i'm okay. bu i'm sure there are many hurt. of course, there were. 144 injured and threeeople as we now know were killed. >> and those are the people who become news celebrities in a way. the people whose lives were affected re, who have to fight thugh it. families who lost. familieswho've suffered. those are the names that are going to matr the most. we are going to take you through with tea coverage. the fight for people's health, and their literally bodies that are going on in the hospitals right now. also the investigation. >> ahead we're going to talk to michael sullivan, the former direct of the atf and the u.s. attorney in boston during