night about 4:30 this morning we saw two fbi investigators come out and get this their car and drive off. they didn't answer any of our questions when we approached them. it gives you an idea how serious the situation is here. even though boston is coming back to life and rebeginning to recover here that the hospital they are keeping this boy alive and doing what they can to try to make sure they get as much information out of him as possible. the same hospital where his brother was pronounced dead and some of the people affected by the bombs on monday are still recovering. geraldo? >> geraldo: adam housley in boston. thanks for the updates. of all of the twists and turns perhaps none is more shocking than the fact that the feds were warned. they were arounded that the dead older brother tamerlan had turned to the dark side. did they share that information with the boston p.d.? that is next. [ male announcer ] when you're at the corner of "multivitamin"