reporter: her turn says katherine russell lived with tamerlan in a cramped cambridge apartment as authorities try to determine when and where he may have assembled the bombs, investigators want to find out what, if anything, she knows. she is doing everything she can to assist in the ongoing investigation. reporter: russell s attorneys say she didn t know anything. they say she last saw tamerlan before she went to work thursday before the fbi released this video. they say she worked as a home health aid while tamerlan stayed home with the couple s young daughter. very outgoing, very friendly, very smart, and very talented. reporter: that s the katie russell amos remembers. her high school art teacher says she talked a lot about earning her college degree. are you surprised how her life s turned out so far? i was surprised to find out she had dropped out, and i hadn t seen any indication of a particular interest in a lot of religion. reporter: russell was raised christian
we know there are media reports that another home is being searched in connection with this case. back to you. our thanks to victor blackwell. coming up, more of our live coverage from boston. authorities questioning tamerlan tsarnaev s widow. did she know of his plans to blow up the boston marathon? he g through allergies. try zyrtec®. powerful allergy relief for adults and kids six years and older. zyrtec®. love the air.
country s region for unspecified underground groups. the fbi says it checks databases, telephone communications, online activity. it also actually interviewed tamerlan tsarnaev and family members, but the fbi says it did not find any terrorism activity. so it fwaf that information to russia and asked for, but did not receive, more specific additional info. case closed. because additional information didn t come in, the fbi says, for our purposes under our system, with all the records and investigation we re allowed to do here, it hasn t risen to the level to warrant further investigation or full-time surveillance. reporter: a federal law enforcement official agrees and says tamerlan was not on a terror watch list or any no fly list because the u.s. never deemed him a threat. so there were no alarm bells when tsarnaev came back to the u.s. six months later. by the time he returned, all investigations, the matter had
the plot. his claims, there was no outside encouragement, radicalization or communication, that he and his brother tamerlan were fueled by online jihadist videos. and investigators say he may have consulted al qaeda s english magazine inspire for help on building their bombs. investigators also taking a look at an unsolved triple murder from 2011 to determine if tamerlan tsarnaev had anything to do with it. one of the vibllingts, a friend and sparring partner of tamerlan, brandon mess. he was found dead, along with two others, all with their throats cut. such horrible details as boston continues to recover, and the victims of the attacks are laid to rest. two private ceremonies tuesday for 26-year-old m.i.t. police officer sean collier and for the youngest victim 8-year-old martin richard. now, one other bit to update you