fbi agents are seeking to interview all the family members and friends of the two brothers, including the wife of the older one, tamerlan. her lawyer says he is talking to federal authorities about how to proceed. matt? >> pete williams, thank you very much. edward davis, commissioner of the boston police department, joins us now. commissioner, nice to see you. good morning. >> good morning, matt. >> you've got a suspect in the hospital in critical, but stable, condition. unable to speak, but answering preliminary questions in writing. based on those early answers, are you 100% confident there is no future or further threat to boston in terms of accomplices or unexploded devices? >> this is very early in the investigation. we're satisfied that the two main actors, the people that were committing the damage out there, have been either captured or killed. there's still an open question as to exactly what happened in this investigation and there are enormous investigative resources being poured into that right now. we can't say with 100% certainty that -- anything actually at this point. >> do you know if this suspect has in any way given any indication of what the motive was for these attacks? >> no. it would be impossible for me to discuss anything about the suspect or the investigation. that's very sensitive and it's very much in play right now. >> let me ask you, take you back to thursday night. had the tsarnaev brothers not done what they did in killing officer collier and then carjacking that car, do you think the boston police department, the fbi, federal officials were close to capturing these two? or if they hadn't done that, might they have quietly slipped away? >> matt, i'm satisfied that once those pictures were released and these people were still in the country, there was no question we would capture them. >> let me also ask you about friday evening. the decision to lift the lockdown. i know this is a question you probably are going to be facing. what was that based on, that decision? i mean, as it turned out, shortly after the lockdown on watertown and boston in general was lifted and people were told they can go about their normal lives but to remain vigilant, this suspect was found about a block or two outside the perimeter. so was it the right decision to lift that lockdown? >> i believe it was at that time. that was a decision that was made in consultation with mayor thomas menino, governor patrick. every single one of the law enforcement partners that were involved in this operation, we examined all of the facts, and came to the conclusion that at that point in time, at that juncture, we felt that either the suspects had fled the area or there was not enough specific information to keep the city in . . . . . . . our inquiry. >> but based on the fact that the government of russia contacted the united states, whether the fbi found something or not, do you think the boston police department should have been made aware of that situation, a guy like that living in your community? >> well, let me stress, matt, i >> let me stress, matt, i don't have specific information about the international conversations that were going on, but i can tell you we are looking at everything and that will be certainly part of the review. >> boston police commissioner ed davis. thank you very much. >> thank you, sir. now here's savannah. we are learning more about the suspects this morning as investigators dig in to their past for clues. today jeff rossen is in boston with that angle to the story. jeff, good morning to you. >> reporter: hey, savannah. good morning to you. the bombs went off a block from where i am standing in boston. police launched a dragnet to find whoever did it. to find the suspect. a lot of people thought the suspects must be on the run and on the hideout. that's not the case. they went back to their normal lives with the younger brother even going back to college like nothing ever happened. in the days after the bombing, suspected terrorists dzhokhar tsarnaev was hiding in plain sight. friends say the 19-year-old was back in his dorm room here at u mass dartmouth and reportedly went to a party with pals. >> you know him pretty well. his friends saw him at the gym on tuesday. one day after the bombing. >> when i would say hi to him i talked about how it was crazy we had a bombing in boston. >> reporter: you said that to snim you talked about the bombing. >> he said it is sad. the next day jahar tweeted i'm a stress-free kind of guy. tamerlan phoned their father in russia to say everything is fine. >> these two knew enough to stay in place, live their lives as they normally did, nothing to attract attention to themselves. >> reporter: they came from russia ten years ago jahar was a star wrestler, tamm rerlan was bongser and deeply religious. they prayed together at this mosque. >> they never exhibited violent behavior. >> reporter: in 2011, the fbi questioned tamerlan at the request of foreign authorities who suspected he had ties to radical underground groups, be i the fbi found no link to terror. then after a trip to russia last year, a play list of jihadist videos was posted on a you tube channel tamerlan apparently set up. but jahar's friends say he showed no signs of extremism. >> i can't stress to anyone how normal of a kid he was and how mind blowing it is someone so normal could live such a crazy double life almost. >> reporter: investigators are trying to piece this together. two members of congress want to know if the fbi missed something when they questioned tamerlan two years ago. now asking for a full review of that investigation. >> thank you. >> the city of boston a huge sigh of relief over the weekend and people are showing their support for the victims of the tragedy and the heros who apprehended the suspects. wonderful signs of support at the red sox game over the weekend. they unfurled this huge american flag over the green monster. and then -- >> a surprise, neil diamond came out to sing the red sox anthem "sweet caroline." he showed up and asked to sing apparently. think jonny gomes put the emphasis, had the names of the victims. >> including the m.i.t. police officer and the marathon was held in london over the weekend and solidarity of the people with boston at that as well. >> people wore black ribbons to remind people that it happened in boston in solidarity. >> we saw it acrossing events, nascar, hockey games. >> member of a crowd in london held up a sign that says run if you can. walk if you must, but finish for boston. >> grit sentiment. another major story we are following this morning. rising floodwaters along the mississippi river in the midwest. we are seeing dramatic rescues and more rain is on the way. we will talk to al about that in a second. but right now john yang is in clarksville, missouri. good morning to you. >> reporter: good morning, matt. the residents of clarksville are waking up to discover the river has risen quite a bit overnight. the good news is their frantic sandbagging efforts are protecting the downtown from the rising waters. across the midwest this morning, waters are rising fast. here in clarksville, they have had a lot of practice at this. it has flood at least four times in the last 18 years. this year, it came early. >> it came very fast. faster than 2008 and we don't have the help we had in 2008 so everybody's pulling together and doing the best they can. >> reporter: at least three people have died in floodwaters, including an indiana man whose pickup truck was swept away by the rushing waters of a swollen creek near indianapolis. >> good enough to let his dog out. we got the dog. he didn't make it. >> reporter: the army corps of engineers shot locks and closed rivers to shipping traffic. near st. louis more than 100 barges. >> ten barges sunk or partially sunk in or around the channel. >> reporter: across the region, roads closed and hundreds of acres of farmland under water. a result of last week's storms that dumped a month's worth of rain in a matter of hours and it's just the beginning. >> it could take over a week to get that water to make its way to over areas especially through the mississippi valley. >> reporter: for many it is part of life on the river. in clarksville, douglas said the deck of his house felt like the deck of a ship. >> when the river's low it is a beauty. when it is high it's a beast. >> reporter: officials say this is probably about as high as this water is going to get here, but it's all moving down river, cresting in st. louis probably tomorrow and south of there later in the week. matt? >> john, thanks. as i said we will get to al's forecast in what couple of minutes. >> natalie is following a story out of washington, a sad story. >> another sad story. a deadly shooting overnight south of seattle. five people were killed in an apartment complex on sunday night including a suspect who was shot by police at the scene. investigators are looking to what caused the gun fire to break out. now to the latest on the recovery efforts in west, texas, as residents comb through the rubble caused by the fertilizer plant explosion and search for answers. gabe gutierrez is on the scene with the latest. gabe, good morning. >> reporter: natalie, good morning. more residents are expected to head back in their homes today through police check points like this one, as investigators search for clues at the blast epicenter, questions linger about how and why this happened. this morning, new images obtained by nbc news inside the nursing home, torn apart by last week's massive explosion. >> it was just black smoke, it was windows blown out. i think, my god, what has happened? >> reporter: administrator rose anne morris wants the world to know of the heroic efforts by employees, volunteers and first responders who rushed to pull 130 elderly residents from the rubble. has it sunk in yet? >> no. not really. >> you can hear the panic in the 911 calls. >> our whole house, windows, everything it sounded like a bomb and i'm looking outside and there's like a bomb on 35, i don't know what is going on. >> investigators say they found the origin of the explosion but won't say where it is and they still aren't sure what caused wednesday's initial fire. >> we do not have a time line. >> reporter: the fertilizer facility's ownerer says the company is working closely with investigators and pledges to do everything it can to understand what happened. but already some lawmakers are asking whether chemical storage regulations need to be strengthened. but residents wonder how long it will take to rebuild. >> there's a big explosion and our house is destroyed. >> reporter: the death toll at 14. a public memorial is scheduled for later this week for first responders. >> gabe gutierrez in west, texas. thank you so much. airlines are bracing for major delays across the country as furloughs of some 15,000 air traffic controllers kick in. the result of government spending cuts. though furloughs went in to effect on sunday, but monday is set to be the agency's real test. rescuers in china are scrambling to reach communities cut off during a massive earthquake on sunday. at least 188 people were killed and more than 11,000 others injured in china's sichuan province. mary is at the stock exchange. good morning, mary. the gas prices dropped again. the average price dropped 11 cents over the last two weeks. the senate could allow states to tax internet purchases adding $11 billion to state coffers and wall street gets back to work after the dow's worst weekly decline since june. back to you. >> mary, thanks. in great britain, the duchess of cambridge, kate middleton appeared in public on sunday with her pregnancy more evident than ever. she stood in for queen elizabeth at a review of scouts while the queen celebrated her 87th birthday in private. the duchess and prince william are expecting the first child this summer. for those who are on royal baby bump watch -- if you have been living under a rock, did you know. >> when you said her name i perked up and i wanted to see bump. >> she looks beautiful. >> certainly does. >> mr. roker has more on the midwest flooding an the local forecast. >> not a lot of good news for friends in the midwest and winter won't let go. we have a funnel system. behind it a lot of cold air and snow for the upper midwest and the plains. ahead of it, a lot of wet weather. we are looking from sheridan up to dull lui. anywhere from six to nine inches of snow. generally one to three inches and then ahead of that system we have heavy rain from lincoln, nebraska, up in to eau claire, wisconsin and another one to three inches of rain, which will cause problems for the mississippi river later this week. we will have the local forecast in just a moment but first this message. . you'll need your sunglasses, t-shirts and bottled walter. 70s and 80s in san francisco. today, the hottest day of the next seven. tomorrow, temperatures dropping a little bit. as the sea breeze picks up and the low clouds return on the coast. big cooling for the middle part of the week as temperatures dip back in the 70s and 80s inland. lo malo que surge >> mr. roker, thank you. ahead the internet's impact on the hunt for the boston bombers. the good and bad. we will get in to that with the head of google. and reese witherspoon on the red carpet following her arrest for disorderly conduct. but first this is "today" on nbc. rlconduct. but first, this is "today" on nbc. star command, i'm detecting high levels of happiness. luscious locks there's an entire land here...with living cars. now this is flying... with style. great glittering galaxies. disneyland resort just got happier, see it all with a 3-day park hopper ticket. i now appear to be lost in a deep dark cave... well, you may notice some of the it is earth day and earth week here at nbc universal. k here 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[ beeping ] ♪ [ male announcer ] we don't just certify our pre-owned vehicles. we inspect, analyze and recondition each one, until it's nothing ort of a genuine rtified pre-owned... mercedes-benz for the next new owner. ♪ hurry in to your authorized mercedes-benz dealer for 1.99% financing during our certified pre-owned sales event through april 30th. >> the amber alert next month. she left her daughter inside the suv. when she got back, the child and vehicle were both gone. five hours later, officers found the suv with the 11-month-old, gabrielle, safe inside in a driveway across town. three weeks later, officers arresting 30-year-old carla hernandez for that crime. she is facing kidnapping, child endangerment and auto theft charges. in the meantime, san jose police say it is amazing nobody was killed when somebody fired several shots into a car full of people early sunday morning. police say that shooting happened at about 2:00 a.m. in the parking lot of the siesta nightclub on monterrey highway in south san jose. officer investigating the possibility of an argument inside the club led to the gun fire outside. police have not yet released any information or description of the gunman. meteorologist, christina loren, has a couple days off. meteorologist, rob mayeda, is in to tell us about a hot monday. >> clear skies, comfortable for now. by the afternoon, upper 80s and low 90s for our valleys. san francisco and oakland, 70s to mid-80s. 82 around santa rosa. tomorrow, a little bit of cooling. as the sea breeze turns on, big drop in temperatures as we head toward the middle part of the week. the sky is looking clear. let's see if the roadways are looking the same. >> relatively clear. a monday. a shot of 101 north underneath the 680, 280 interchange. not so bad right here. the map will mark it out. it is not so bad. right there, we have slowing once you pass that scene and approaching the area off of the capital expressway as well. 280 slows around 880 as well as 87 into downtown and 85. a traditional stretch up in toward cupertino. south 680. back to you. >> mike, thanks a lot. another local news update for you in one half hour. the "today" show rolls on. is it wrong to buy an entire outfit to match your mani-pedi? shop like a fashionista. not if you find something amazing for less than the price of it. save like a maxxinista. designer brands at t.j. prices. t.j.maxx. >>that is, of course, reese witherspoon posing on the red caet at last night's premiere of her new movie, but a different image a few days ago. she and her husband were arrested during a traffic stop. that's the mug shot. we will tell you what she's saying about that arrest coming up. it's the 22nd of april, 2013, as we say hello to the crowd outside on the plaza. good mning to you. i'm savannah guthrie beside matt lauer. >> also ahead,he searc for boston bombers was carried out in a way we haven't really seen before, right in the middle of a digital revolution. the internet, social media playing key roles. while it was successful, it also highlighted some problems we have to deal with. we're going get into that with the influential head of google. and then we'll take a turn and see how motherhood is treating jenna bush hager a whopping nine days in. we'll find out more about her experiences and see some new pictures of baby mila. but we're going to begin this half-hour with some of the legal issues surrounding the arrest of the sviving bomb suspecter dzhokhar tsarnaev. lisa, good morning to you. we understand he's responding to the extend he can in writing. and that officials a citin what's known as the public safety exception so that they don't have to read him his miranda rights right away. as time passes, does the justification for that exception grow weaker? are they on ls strong ground? >> it sure does, because as you know, miranda rights are a bedrock constitutional principle. we all have the right to remain silent, t get an attorney and be advised of those rights. the public safety exemption is a very narrow exemption. there has to be an imminent threat to the public. it certainly seems less imminent. >> don't officials who say the terror is over, don't they kind of undercut that a