disappeared a year apart were last seen within a five-block radius and held in castro s house three miles away. the castro brothers uncle owns a neighborhood corner store. they might have been living two different lives. reporter: some neighbors thought the house was vacant a place that he checked on from time to time. but now a few were concerned. no windows, no doors. only the attic window. i ve had family members who have phoned the police and they have come and knocked down the door and nothing. reporter: police say they only answered calls twice on the street and once before the women disappeared and in 2004 to question aril castro about a child left behind on his school bus. no charges were filed. what we have here is a psychopath or possibly three. usually when you have three team involved in something you do have a ring leader and my guess is the person owning that house and how much his brothers were involved, we done yet. reporter: it turns out the castros have
that surely must be what investigators are looking at given some of the suggestions of radicalization that krcrept in the past few years. reporter: at this point, with he don t know why these two brothers decided to carry out this bombing together. nobody can ask them. one is dead and the other is badly hurt and unable to speak. cnn did talk to the brother s uncle who lives in maryland. he knows who made the decision. he used his younger brother. he wasted his life. i understand he messed up his own. i don t know what was going on there. he messed up his life. that s why he decided to take lives of innocent people, hurt innocent people. i believe he has been full of evil. maybe he turned to be evil himself, entirely confused.
brother s uncle. the big man was partying. we ve got a crew on the u. mass dart mouth campus. where is dzhokhar tsarnaev now and is he going to make it? police say he is hurt bad. we re live from the hospital and we are going to find out if he is talking. first we re going to go candiotti. susan is in the area. police and fbi are still on the scene where you are. what are they looking for now. reporter: they re looking for evidence to build their case, anything that could help. any explosives residue to prove that he was helping to build homemade bombs. they re looking for any evidence that he might have fired a gub. they re looking for blood evidence. all thing they can use as they try to build their case against