what was the motivation? new this morning, investigators in russia speaking to the mother and father of the suspects. >> and john, we're expecting new developments today in the alleged plot to blow up a train out of new york. a suspect is due in court just hours from now. welcome back to "early start." i'm zoraida sambolin in new york. >> and i'm john berman live in boston this morning. it is wednesday, april 24th. about half past the hour right now. so great to have you with us. and at this hour, they're trying to meet with the parents of the tsarnaev brothers. they're doing that with the cooperation of the russian government. also a proud mile stone here in boston this morning. it is a live look at boylston street. again, that is the street where the boston marathon finished. that is where the attacks were, about nine days ago. and while you were sleeping, crews worked through the night