. >> shaun collier was killed in the aftermath gunned down three days later while the tarznia brothers were on the run. he was just days away from taking a job in the police department when the bombing suspects cut his life short. >> in six days, thens of runners will take part in the boston marathon race. organize ares are trying to find a balance of coping everyone safe. we have a member of the house homeland security committee. thank you for joining us. this is a huge day one year later and what is it like to plan the event after what happened this year. >> sandra, thank you very much. this is a challenge for the boston police department and they are truly outstanding. they are first rate. you will see certain basic changes. i doubt if you see back packs allowed nearby. and you will so more surveillance on the way that you have seen before. and we'll find cooperation between the fbi and police. and one of the short comings last year, it turned out this it is fbi did not share with the boston police department on the older brother. it is the type of information should be shared and m

shaun collier was doing what he always wanted to do, building a career as a police officer, devoted torichard was a little neighbourhood kid with a big smile and an even bigger heart. together they showed us the qualities of our city, that would carry us through. and to the survivors, we have all witnessed what you have experienced. we gained strength from your courage, and we felt hope for our future. and we came together as a city. within 24 hours, leaders in government, business and philanthropy formed the one fund. thousand gathered in dorchester filling the park with candles and prayers. help came from across the world. people reached out to us in solidarity offering messages of healing and hope. and next week thousands of runners and millions of our friends from around the world will come to boston, the 118th boston marathon will be a living breathing celebration of our city's resilience. we still hurt, we hurt from trauma, we hurt from grief, we hurt from loss. we hurt when violence hits our streets anywhere and everywhere in our city and our kids become victims. we hurt now as

friends and family remember shaun collier. he was died in the line of duty. meantime, president obama is among those wondering could the bombings have been prevented? he shared his thoughts with our boston station wbz. >> it's understandable i think, that all of us want to see could this have been prevented? the truth of the matter is is that you know law enforcement at every level performed add admirably but you can always refine and improve what needs to be done and my expectation is is that given the strong existing relationship between the fbi and boston authorities and authorities around the country, they've been you know trying to figure out what more they can do and i suspect that we'll continue to see improvement in the years to come. >> about 36,000 runners are expected to participate in this year's marathon. 9,000 more than last year. >>> today there are flooding concerns across the eastern gulf coast and much of the southeast with heavy rain and unseasonable cold forecast across the region. let's get more from meteorologist craig setzer from wfor t