Today marks the one year anniversary of the Boston Marathon bombing. When at 2:49 in the afternoon two pressure cooker bombs went off right by the finish line. Killing three people and injuring about 264 others. The explosion changed hundreds of lives and transformed the city forever, uniting it making it Boston Strong. Today Boston will have a ceremony for last years bombing, one week before the start of the 109th marathon takes place. With today’s ceremony, nine witness take a look back of where they were at the marathon one year ago.