life. monday on the eve of this somber anniversary we sat down with her again. here is grandma lillian. 2013 boston marathon champion. reporter: april 15th, 2013, started as a perfect day for one of the boston s most loved traditions, marathon monday. spectators lining the streets, cheering on more than 23,000 runners. but four hours, nine minutes into the race back-to-back explosions tearing through coakley square, causing chaos and panic. something just blew up. reporter: the attack tons people here have been felt in boston, in this state, around the country, and the world. reporter: the disbelief of what happened turning to grim reality as the identities of those lost in the attack were revealed. we found out the name of a second victim who died in the terrorist at tack here, krystle campbell of medford,