know, one suspect is dead, another suspect, dzhokah tsarnaev is on the run. believed to be holed up in watertown, massachusetts, his brother, 26-year-old tamerlan tsarnaev was killed after an overnight shootout with police. law enforcement fills say that both are from the russian region near chechnya and have been living in the united states with family members for about a decade. their estranged uncle spoke if maryland a short time ago. >> jihad, turn yourself in. and act forgiveness. if the injured, and those who left, ask forgiveness from these people. if we're ashamed, people are ashame on the family, our family, you put shame on 9 entire chechen. >> across boston, an unprecedented situation. the entire city and metropolitan area, all surrounding suburbs effectively shut down. all mass transit suspended. no a no-fly zone in effect. people have been told to stay inside their homes. >> keep the doors locked, do not open the door unless there is a uniformed, identified law enforcement officer on other side of it, requesting to come inside. >> there have been