. >> reporter: sonia's husband oscar chavez posed with his grandson forphoto last night and he, too, is gone. prince georges county fire and ems chief said a family member went to the house this morning after being unable to reach the residence. the 911 call came at 10:45 a.m. >>> the ems crews made a medical consultation with medical direction and made a determination all five of the patients were to be decleared deceased. >> and the medical examiner will have the main cause but they think they know. >> we found separated pipes from the heating system. that would be completely consistent with carbon monoxide release into the home. >> reporter: back out live, that is the house there. the chief tells us the co levels at 30 parts per million can kill you over a short period of time. his crews, when they went into the house, measured levels at 500 parts per million. they were poisoned and by the time help arrived, it was too late. and we do have the identities and the ages of the 5 who died here, 57-year-old oscar chavez, his wife sonia chavez who is pore years old, nelson landa verde,

he found everyone in the house dead. 56-year-old oscar chavez seen here with a grandchild along withe, 44-year-old sonja. sonja's sister, noraleva visiting and two neighbors. the first fire fighters who responded measured some of the highest carbon monoxide levels they had ever encountered in a home. the culprit a gas furnace flu damaged by rust and partially detached. >> the reality is these people apparent leap were affected quickly by a large quantity of carbon monoxide. without the detector and without the connection of the pipe, where, we are where we are. >> reporter: e mothis home did have a carbon monoxide detector. if you have a gas furnace, gas hot water heater in your home you should have a carbon monoxide detector in addition to a smoke detector. reporting live, jackie benson. news 4. >> thank you, jackie. chilly out there tonight. doug, how chilly is it going to get? >> chilly enough. once again we have freeze warnings out there. we have frost advisories the. we didn't have too many in march. a few in april a nother one tonight. in the district. not too bad. 54 degrees.

. >> sonia's husband oscar chavez posed for the picture with his grandson just last night. those in the home who were not related knew each other through church. angel diaz was in the church band with one of the men who died. >> and we work together like about a year. and i had real good. this is good. >> reporter: we're back out live new with mark brady, the spokesman for the prince georges county fire and e.m.s. tell me, mark, we heard the chief say in the story there appeared to be obvious problems with the heating system in the house. educate folks a little bit and tell them, remind them again how this issue works? >> well, we would like to see everyone have their fuel- burning appliances checked annually, every year before the season begins to make sure everything is in tact and if this was checked, more than likely it would not have occurred. a technician would have noticed the pipe being destroyed. a carbon monoxide detector in the home and that is designed to activate when the air reaches unhealthy levels. >> and when you hear about the numbers of the chief talking

the homeowners 56-year-old oscar chavez died along with his wife 44-year-old sonia. sonia's sister n-ora and two men went to -- rented rooms and they died. marvin chavez went to the home around 10 yesterday morning to check on his father and stepmother who was home recovering from back surgery. when no one answered, he knew something was wrong. he went inside and found the bodies. authorities say carbon monoxide levels inside the home were at a highly dangerous and lethal level. >>i got in the house, he says, walked through and found the body of my father and then my stepmother. everybody inside was dead. my mother was a hard working woman. she worked in the bakery at giant she says originally from el salvador. >> reporter: authorities say autopsies are needed to confirm the cause of death but it appears a detached and rusted out furnace exhaust system is to blame. sherry johnson, abc2 -- sherrie johnson, abc2 news. >>> new picture of a fire at a vacant warehouse in southwest baltimore. eye happened in the 2100 block of older -- oller street. fire officials say the a

a 58-year-old oscar chavez and several others. a faulty furnace is to blame. >> if that separates it'll release carbon monoxide. certainly if they had the heat on which it did indicate it was on. retail people at 30 parts per million is deadly. at the front door they encountered 140 parts per million. at 500 parts it would probably be fairly quick. >> reporter: the firefighters spent most of the day and night calming the neighborhood and making sure everybody was safe. >> she showed signs of trauma and police fade her a 27- year-old. she was found monday afternoon in a home in the 5400 block of hilbourne. >>> didn't take long to repair the burned speed camera. police are still looking at who burned it. now we noticed the box is back but we didn't see a camera. the police said they will operating one shortly. >> a jury of their peers won't hear case. instead the brother as ceus of beating a black teen requested a trial by judge and at first they want it moved out of the city. opening statements are expected to saturday in the morni

found dead in a suspected carbon monoxide poisoning in the 500 block of shelby drive. 56-year-old oscar chavez died along wi his wife 44 -year-old sonja. sonja's sister noria and two men who rented rooms in the house also died. marvin chavez went to the home arnd 10 yesterday moing to check onis father and ep ther who were home recovering from back surgery. once he went inside eric found the bodies. authorities say --inside, he found the bodies. authorities say the carbon monoxide s at a lethal level. >> a fami united by the church and by chst consider each other family because they are here wit their real faly. >> over an extended period of tight time it's deadly. at the front door they got 0 part and 500 parts per million it would be quick. >> reporter: authorities say autopsies are needed to confirm the exact cause of death but it appears a detached rusted out furnace exhaust system is to blame. >>> employees where an 8-month- old girl stabbed says they complained about lapses in security. police say the baby girl is in stable condition despite being stabbed in the head and neck inside the

. >> print stored as county fire officials say that 56-year-old oscar chavez, his 44-year-old wife sonia, sonia's sister nora leiba, and two men who rented rooms in the house, nelson landaverde and javier segovia passed away in this oxon hill home. fire officials believe the cause is carbon monoxide. another family member made a horrific discover yesterday afternoon. prince george county fire chief says the level of carbon monoxide firefighters discovered in the home was over 500 parts per million, so high that it could have killed quickly. >> we tell people that 30 parts per million over an extended time is deadly. >> all five victims were described as active in their church and strong in their face. >> everybody has to go sunday but it's hard -- to go some day. >> it is 6:39 now, around 40 degrees. >> the best seat in the house or the plane which ones are most in demand. >> a case of mad cow disease found in the united states. >> i have met him but we're not friends. president obama talki greetings from the windy city of chicago. people here sure are friendly but some have had a hard t

prince george's county fire officials say that 56-rolled oscar chavez and his 44-year-old wife were two of five victims who passed away. fire officials believe the cause was carbon monoxide. another family member made a horrific discovery. yesterday discovery the prince george's county fire chiefs of the level of carbon monoxide firefighters discovered was over 500 parts per million and that was so high it could of killed quickly. >> 30 parts per million is deadly. >> the other victims identified as the sister of sonya chavez and two men who rented rooms in the house. all five victims were described as active in their church and strong in their faith. >> it's hard. >> autopsies are being performed this morning. and an investigation is under way. the fire chief says right now they believe the cause of all this is a broken furnaces report. and live in oxon hill, jummy olabanji. >> wednesday morning, a former head above tsaof the tsa says that they should stop looking for weapons that cannot penetrate. a penetrate >> so i should be able to carry a knife? >> yes. they should only be looking

marvin tells me had just seen his dad, 57-year-old oscar chavez last night. he took this picture of him with his granddaughter. she was heart broken. she says her mother sonia who was married to oscar worked in a bakery at a local giant. she tells me her 54-year-old mother had just had back surgery. she says the other woman found dead in the hom was her mother's sister. nora, 57 years old who had come out of town to help take care of her. the other two people were renters. francisco, 33, and nelson, 44. jacqueline was inconsolable when she found out about her brother-in-law's death. she says he worked at a local car wash to send money home to his wife and their two kids. he was also the praise and worship leader for the oxen hill church. the church pastor came by and told me he was there to support the family and call any of their loved ones back in el salvador. he tells me they take comfort in knowing the five are with god. many in this tight-knit church community say they never could've seen this coming. >> reporter: the family tells me these next couple of

marvin tells me he had just seen his dad oscar chavez last night. he took this picture of him with his granddaughter. she was heartbroken. she says her mother sonia who was married to oscar worked in the bakery at a local giant. she tells me her 54-year-old mother had just had back surgery. she says the other woman found dead in the home was her mother's sister nora, 57 years old who had come from out of town to help take care of her. the other two were renters. francisco, 33, and nelson, 44. she was inconsolable when she p found out about her brother-in-law's death. she says he worked at a local car wash to send money home to his wife and their two kids. he was also the praise and worship leader for the oxen hill church. the church pastor came by and told me he was there to support the family and call any of their loved ones back in el salvador. he tells me they take comfort in knowing the five are with god. many in this tight-knit church community say they never could've seen this coming. family members tell me church services will likely be held

neighbors say oscar and sonia chavez and three others were hardworking and deeply religious. >> i feel so sorry for the family because they were good people. it is a shame that good people is gone. i will miss my neighbors. >> it hits close to home really. it could have been my family. >> reporter: the fire chief will be here at 9:00 to meet with firefighters and talk to the community. this is the one thing that every home should have. it is a carbon monoxide detector. you can get it at any home improvement store, also major home stores. $28. $28 could save your life. back to you guys. >> important warning for all of us. thank you. >>> this friday marks four months out from the republican national convention when the gop will officially name its presidential nominee. >> and after last night's five- state sweep, support for mitt romney is stronger than ever. he easily won primaries in pennsylvania, new york, connecticut, rhode island and delaware. some romney watched the returns from new hampshire, site of the first in the nation primary back in january which he won. >> to all of the th

. >> reporter: oscar and sonia chavez we're told had only lived in this home for about a year. but like many of the houses in the community, it was built in the '60s and a lot of the systems are old. fire chief bayshore will be here around 9:00 this morning meeting with firefighters as well as neighbors. he will want to visit with neighbors here in the community as well as answer their questions. >> thank you. >>> two dogs shot by officers in prince george's county may have been the same dogs involved in a vicious attack friday. dog were going after two kids in northeast who had to climb onto a car to get away. a neighbor threw himself at the dogs to get them to leave the kids alone and then he was attacked. the dog's owners haven't been found so investigators have not been able to confirm whether the ones that were shot are the same dogs. >>> we're following a major consume are and health alert this morning. the first new case of mad cow disease in the u.s. in six years. we'll have the latest coming up. >> more tough talk from north korea. why a military leader there says the

. >> marvin chavez had come to the house mid-morning to check on his father, oscar. in the doorway, he found two bodies. he called 911 and firefighters found three more bodies further inside. >> a lesson to be learned in this case is we had a heating system that had an old piping system and obviously had not been maintained. >> fire chief says investigators found a break between sections of the exhaust pipe from the furnace inside the single story older home. carbon monoxide is a colorless, odorless gas. even at high levels, it kills without warning. >> we all can stand here today and think about what we would do or could have or should have, the reality is, these people apparently were affected by a large quantity of carbon monoxide. >> reporter: the pastor says nelson, oscar, and sonia chavez are now in heaven with the lord. now the cdc estimates that almost 500 people, 500 americans are killed every year by carbon monoxide. in the last two months, fire rescuers here had four calls for suspected carbon monoxide. planning to go door to door tomorrow morning, warning

investigators say homeowners, oscar and sonya chavez, and the three people who lived with them, never had a chance. >> i feel so sorry for this family because they were good people and it's a shame good people are gone. i will miss my neighbors. >> reporter: a broken exhaust pipe designed to pump the toxic carbon monoxide out of the house deteriorated with age. >> it is relatively old. it is rusted out and holes, which allowed the toxic gas to escape into the house. >> it hits close to home, really. like i said before, it could have been my family. >> as she mourned the loss of the neighbors, mckinnie is so thankful she had her old furnace replaced a few years back. >> go out and get some carbon monoxide detectors. >> ruben who has lived in his house for 15 years is calling a technician in the morning. >> this really concerned me a lot. i have my kids, and hopefully it won't happen to me or other people around here. >> reporter: and the problem is, many of the homes around here were built back in the 60s and they do have old furnaces and even older exhaust systems. fire investigators

. >> marvin chavez had come to the house mid-morning to check on his father, oscar. in the doorway he found two bodies. he called 911 and firefighters found three more bodies further inside. >> a lesson to be learned in this case is that we had a heating system that had a very old piping system and obviously had not been maintained. >> the fire chief says investigators found a break between sections of exhaust pipe from the furnace inside the single story older home. carbon monoxide is a colorless, odorless gas. even at high levels, it kills without warning. >> while we all can stand here today and think about what we would do or could have or should have, the reality is, these people apparently were affected very quickly by a large quantity of carbon monoxide. >> the pastor says nelson, oscar, and sonya and the other victims are in heaven with the lord. the cdc says these deaths are shockingly common. nearly 500 americans every year killed by carbon monoxide. the fire chief says a couple of things could save some of those lives. regular checkups of your home heating

. >> chavez had come to the house mid-morning to check on his father, oscar. he found two bodies in the doorway and firefighters found three further inside. >> we had a heating system that had a very old piping system and obviously had not been maintained. >> the fire chief says investigators found a break between sections of exhaust pipe from the furnace and they found colorless, odorless carbon monoxide at concentrations well beyond deadly. >> we can all stand here today and think about what we would do or could have or should have. the reality is, these people were affected very quickly by a large quantity of carbon monoxide. >> word spread quickly, but for more than an hour, they had to wait for details. >> i don't know what happened. i just know that some people dead in my mom's house and i can't get inside. >> the cdc says these kinds of deaths are shockingly common. nearly 500 people every year die from carbon monoxide poisoning. and the fire chief says a couple of things could have saved these lives and probably many more. regular checkups of your home

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