>> p >> pelley: tonight, the f.b.i. has released pictures of suspects in the boston bombings. these men are now the target of a national manhunt. >> we consider them to be armed and extremely dangerous. >> pelley: bob orr and john miller are on the investigation. the president came to boston to lift the people's spirits, and he brought them to their feet. >> the world will return to this great american city to run harder than ever and to cheer even louder for the 118th boston marathon. >> pelley: major garrett is with the president. a catastrophic explosion devastates a texas town. ben tracey is on the scene. and saving the life of a child. elaine quijano with tracy monroe

who helped rescue one of boston's littlest victims. >> there's a baby, there! i said, "jane, it's going to be okay, honey. you're going to be all right." you're going captioning sponsored by cbs this is the "cbs evening news" ptith scott pelley. nsored by cbs >> pelley: good evening. they are the most wanted men in america tonight. have a look. the f.b.i. today said the two men in this video are suspects in monday's boston bombings. but where are they, and who are they? so far, they are known only as suspect help in identifying them. in a moment, we will give you a web site where you can see these pictures again, and we'll give you the f.b.i. phone number to call if you recognize these men. first, we will go to homeland security correspondent bob orr. bob. >> reporter: scott, investigators are confident

tonight the men in the surveillance videos are directly linked to the twin bombings. now they're trying to put names to the pictures. these video clips were captured by surveillance cameras before the twin explosions on boylston street. it shows two men, one in a dark baseball cap and wearing an unzipped dark jacket; the other walking just a short distance behind, wearing a dark jacket and a white baseball cap, which is backwards on his head. car men were carrying backpacks, which the f.b.i. believes contain the bombs. this image was taken approximately 12 minutes before the first bomb exploded. while the suspects are not seen in this tape side by side, sources say investigators have strong indications they were together. f.b.i. lead agent rick deslauries described the men's movements. >> as you can see from one of the images, suspects 1 and 2 appear to be walking togethe through the marathon crowd onboi reporr:he f.b.i. first

zeroed in on the two when the second suspect, the one in the white cap, was spotted by a surveillance camera near the sources say the tape showed the. man putting his backpack down. then as soon as the first bomb exploded 100 yards down the street near the finish line, he fled. a short time later, the second bomb exploded near the spot where the man had been standing. sources say investigators have leads on possible names but agent deslauries says the f.b.i. still needs help. >> somebody out there knows these individuals as friends, neighbors, coworkers or family members of the suspects. though it may be difficult, the nation is counting on those with information to come forward and provide it to us. >> reporter: now, the f.b.i. still cannot say for sure if the bombings are the work of a foreign or perhaps home-grown cell, but a senior law enforcement official says the evidence now is starting to point towards a domestic act of terror.

scott. >> pelley: bob thank you. our senior correspondent john miller is a former assistant director of the f.b.i. john, the men do not seem to be doing anything suspicious in these videos, so why does the f.b.i. believe that these are their men? >> reporter: you know, they have other video, including the one bob referenced where they believe they actually have on tape one of the suspects in the white baseball cap putting the bomb down in front of the starbucks at the second oncation. we'reason they selected the ted twre seeg here is they wanted to find the pictures that didn't have the most sinister activity but the pictureshat gave pplthe best chance of recognizing them. >> pelley: and one of the backpacks, we're told, matched from the debris that was recovered. >> reporter: that's right, and it seems to be the same kind of make, year, and mold backpack pell is a little circumstantial but, it's a good pointer.

>> pelley: deslauries said in the news reference these men are deemed to be armed and dangerous. >> reporter: and he cautioned people if you see them don't try to stop them on your own. call law enforcement. and i think in this case, given what they're wanted for, they probably have a good reason to want to get away. >> pelley: john, thanks very much. now, here are the web site and the phone number that we promised you. you can see these pictures again .i the f.b.i. web site. site. t the death toll in the bombing stands at 3. more than 170 people were wounded. 57 remain in the hospital nd six o and six of them are in critical condition. president obama visited with some of the wounded today after speaking at an interfaith service at boston's cathedral of the holy cross. many considered it one of the

eresident's most passionate parthes. it was part sermon, part pep talk, and major garrett was there. major. >> reporter: scott, the president's speech from day one in the oval office was one he feared he would have to give but hoped he never would, a speech about civilians killed and wounded by an act of terrorism in americahis wah. the president wrote the speech himself. he finished it aboard air force one as he flew here. tried to fortify this wounded hey and he remembered three lives cut short. >> if they sought to intimidate us, to terrorize us, to shake us from those values that make us who we are as americans, well, it should be pretty clear by now that they picked the wrong city to do it. ( applause ) not here in boston.

not here in boston. crystal was always smiling. alwe who knew her said with her red hair and freckles and her ever-eager willingness to speak her mind, she was beautiful. sometimes she could be a little noisy, and everybody loved her for it. china whos are with the lu family of china who sent their daughter lingzu to b.u. so that she could experience all the city has to offer. and our hearts are broken for eight-year-old martin with his tig smile and bright eyes. and we're left with two enduring images of this little boy, forever smiling for his beloved bruins and forever expressing a wish he made on a blue poster

board-- "no more hurting people. peace." even when it hurts, even when our heart aches, we summon the strength that maybe we didn't even know we had and we carry on. we finish the race. ( applause ) we finish the race, and this time next year on the third monday in april, the world will return to this great american city to run harder than ever and to cheer even louder for the 118th boston marathon. ( cheers and applause ) >> reporter: the president also brought an inspirational message, scott, to those crippled by the bombings. you will stand, he said, you will walk, and you will run. maybe next year, scott, and for some, maybe sooner. >> pelley: major, thank you. the president also addressed the bombers themselves from the pulpit.

he called them small, stunted individuals, and said, "we will find you." now, in the little texas town named west, the devastation today is so great, that authorities cannot say how many have died. at least 160 people were injured when a catastrophic explosion erupted at a fertilizer storage facility. it happened last night about 8:00 central time. as volunteer firefighters were trying to put out a fire at a warehouse where highly explosive ammonium nitrate fertilizer is stored. many homes caught fire, an apartment building was blown to pieces and our coverage begins with ben tracey, in west. >> i'm getting you everybody i can. i'm sending everybody i got. >> reporter: volunteer firefighters were called to the west fertilizer company at 7:29. aey battled the blaze for 24 minutes, and then this.

the explosion had the force of a small earthquake. it leveled entire blocks of town and was felt 50 miles away. >> are you okay? o i can't hear. i can't hear! can'out of here! please, get out of here! >> we knew it was bad. >> reporter: dr. george smith is in charge of the town's ambulance service. what did it sound like? evat did it feel like? >> it was the biggest bomb i've ever heard. >> reporter: what kind of damage oud you see? >> it looked like a bomb exploded. shere was an apartment complex basically blown apart. any house within probably half a mile, all the windows are gone. >> reporter: the force of the blast caused a collapse at a olighboring nursing home. dozens of area residents were injured by shattered class. >> firefighters down. erare reghown. an explosion. >> reporter: emergency medical

firnicians helping firefighters overcome by smoke were also caught in the explosion. >> they saw some of their wniends literally get blown up. those were all friends of mine, not just-- not just e.m.s. people. >> we do have a lot of injured here. >> reporter: the fear of toxic fumes from the chemicals at the plant spread through town. >> guys, you need to get out of ere! >> reporter: five square miles were evacuated. the high school football field mecame a triage center. what caused the explosion is still unknown. the company did store fertilizers that can be explosive when exposed to extreme heat. today, people in west were cleaning up their now-boarded up homes. april puckett still has shards ss stuss stuck in her walls. >> some of my closest friends have had their whole houses gostroyed, and i just-- we're going to try to pull together and recover from this.

i mean, that's all we can do. >> reporter: yet this is a town that still does not know just how much it's lost. how your guys are unaccounted for? >> six. >> reporter: six. what does your gut tell you? >> they're probably deceased. >> reporter: in 2006, west fertilizer was fined by the fe environmental protection agency ma for failing to implement a risk management plan and, scott, we learned tonight the last time she government's workplace safety inspectors were at the 5.ant was in 1985. >> pelley: ben, thank you very yor of the town ofesis also one of its volunteer firefighters. >> reporter: we understand the firefighters were trying to evacuate the area around the plant. they do know they were in very close proximity to the explosion. thus, we have not been able to locate those firemen yet. >> reporter: how many firemen? >> five from the west volunteer fire department, another one dom the dallas fire department that was just helping out, and a couple of other ones.

>> reporter: and how many civilians missing? >> we don't know just yet. we're getting them spotted now. what we've been doing for the last 24 hours is clearing out the stuff, searching and rescuing and now recovering, trying to find the bodies and trying to find the fatalities. >> reporter: have you absorbed any of this? >> no. i have lost this very, vvery good friends. >> reporter: the mayor says he would like to help some residents back into their homes tomorrow but the decision will be up to the bureau of alcohol, tabacco, and firearms, which is investigating. >> pelley: a long way to go, manuel, thank you very much. the families of sandy hook victims vow to keep fighting for onugher gun laws. and boston shows its courage and compassion when the cbs evening news continues. who's that? that there's the guy who gets his salsa from new york city. new york city?!

>> pelley: a day after gun control legislation failed in the senate, supporters there say they will try again. phe legislation was drawn up after the sandy hook elementary school massacre. among other things, it would have expanded background checks. many sandy hook parent lobbied senators in person, and we asked chip reid to find out how one father feels about the defeat. >> myself, my family, we have a mission to honor our sweet little daniel who was all about helping people. >> reporter: mark barden lost seven-year-old son daniel in the shooting at sandy hook elementary school. ne came to washington with other

sandy hook families to lobby for in control. what was it like sitting in the office with members of congress, especially those who were on th? ( sighs ) >> our message is truly from the heart. our message has nothing to do with politic i'm a guitar player. i'm not a politician. so we just have this very plain, simple message that is about people, and it's about saving lives. >> reporter: did you get the impression that you were situation people or changing their minds? did you have any idea? >> absolutely. they would tell us, "it's so important. thank you so much for being here." >> reporter: given that, were you surprised that you didn't get the votes? >> i guess i was a little surprised. like, how you can look me in the face, how can you look at a picture of my child and vote against something that will-- that will save lives? >> reporter: yesterday at the white house you said you came to

washington with a sense of hope and optimism. is that gone? >> oh, no. >> reporter: this defeat did not stop that? >> not even-- not even a little bit. i'm ready to get back to work right now. >> reporter: now, many of the senators who voted against the gun control bill say they were deeply moved by the stories of the sandy hook families, but, scott, they also insist that the bill before the senate would have done little to reduce gun violence but would have done a lot to interfere with the constitutional rights of gun owners. >> pelley: chip reid at the capital. chip, thank you very much. a husband and wife are charged with the murders of two prosecutors. that's next. anyone have occasional constipation,

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ask your doctor if nexium is right for you. find out how you may be able to get nexium for just $18 a month at purplepill.com >> p >> pelley: a former justice of the peace was charged today with asrdering two texas prosecutors, one day after his wife was charged with the same crime. d of williams is accused of gunning down mark hassee in january, and kaufman county d.a. mike maclellen and his wife, cynthia, last month. hassee and mclelland prosecuted williams. he was convicted of stealing computer equipment. williams and his wife, kim, could face the death penalty if convicted. here has also been an arrest in the case of the poisoned letters that were mailed to president obama and a u.s. senator. today, the f.b.i. confirmed that the letters tested positive for ricin. tis, wspect, 45-year-old paul kevin curtis, was arrested at his home in mississippi.

court papers say he has distrusted the government for years. the tainted letters were intercepted at a postal facility entmaryland. ne president was never in any danger. in this terrib week r the the pride they have in theirnse city and their country. before the bruins faced the buffalo sabers last night, singer rene rancourt invited the crowd to join him in the national anthem. and, boy, did they. ♪ through the perilous night . ♪ ♪ >> pelley: 17,000 voices singing as one. why would somebody run toward danger? ar'll speak with one of the heroes will of the marathon ar'll speak with one of the

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visit death upon innocents, americans will choose to save, to comfort and to heal. he had to be thinking of people like tracy monroe. and elaine quijano has her story. >> reporter: tracy monroe had come to the marathon to cheer on her friends and family. when you decided to turn back, what did you think you were going to be able to do? >> you know, i really didn't have a plan. i didn't know -- i had no idea what to expect. >> reporter: she was swept up in the crowd running from the blast, but stopped. what did you see when you went back? >> i went straight over to this child and this man was working on her wounds. her leg had been blown off. and i just sort of -- i just knelt down close to her and i just rubbed the side of her face and tried to -- i tried to hold on to her hand and just rub her face and i said, hi, baby.

just look up at me. look in my eyes, you know, come on, come on, just it's going to be okay. what's your name? what's your name? she just looked up at me and said, jane. i'll never forget it. >> reporter: firefighters took the little girl to the hoital. monroe remembers seeing a little boy who turned ou be ichard. caug on amateur video wandering in a daze trying to find her family. when is it that you realized that the little boy whose picture then was on the tv, martin richard, was the brother of the girl you helped? >> i hadn't watched any news at all. and then my dad sent a message to us just saying that they have confirmed that the little boy who died was jane's brother. and my heart almost stopped. like it just -- i just like -- i immediately went online to see, like, to see his face and

it really was him. it really was him that i saw. >> reporter: what is it that you want to tell jane's family? >> i want to tell them that their little girl was very, very brave in an absolutely horrific time. >> reporter: two stories of bravery in a city discovering how much its people care for each other. elaine quijano, cbs news, boston. >> jane richard is six years old. her brother martin was eight. >> that's the "cbs evening news" for tonight. for all of us at cbs news all around the world, good night. ld, good captioning sponsored by cbs captioned by media access group at wgbh access.wgbh.org

>> your realtime captioner: linda marie macdonald hoping to prevent a second round of sabotage, armed guards are being ordered, protect our bay area substations. good evening, i'm allen martin. >> i'm juliette goodrich in for elizabeth cook. we have learned tonight pg&e has asked and is getting extra security at several bay area facilities following the sabotage of a substation this week. kpix 5 reporter linda yee is outside a pg&e facility in fremont where officers are now standing guard. >> reporter: well, juliette, right behind me you can see some of the heavy artillery. police have been here since tuesday when another pg&e substation was attacked by vandals. now, other pg&e facilities are also being fortified. but for security reasons, they are not telling us where or how many.

heavily armed police guarded various points around the newark substation and supply yard. patrol cars parked strategically to block anyone from entering the property. pg&e says the extra security was added after another substation in the sauk bay was sabotagetwo da ago. >> we have made sure that additional security is located at our substations throughout our service territory. we are working with law enforcement to determine how best to move forward with that increased security. >> reporter: police say on tuesday, someone with a high- powered rifle shot out five transformers at the metcalf substation in south san jose. minutes earlier someone climbed down a manhole to cut fiberoptic cables knocking out 911 service in gilroy. telephone lines were also disrupted at banks and other businesses. >> so i don't know what kind of sabotage but certainly it was an attempt to take down phones, data and power. >> reporter: pg&e said it did