for the news conference. we've been standing by for a while. it looks like it's been delayed. of course, once it begins, we'll have live coverage. here's an upp date on what we know right now. two brothers, one is dead. the other on the run right now. both accused, suspected of committing deadly acts of terror. if you're just joining us, here are some of the latest developments we're following as we await the start of the news conference. the boston area, here in boston, virtual lockdown. the city is in a virtual lockdown. thousands of officers are hunting for the suspected bomber. the search spreading to the university of massachusetts campus dartmouth where 19-year-old tsarnaev is still registered as a student. he's been on the loose since the fire fight with police overnight, the boston suburb of watertown. his 26-year-old brother,