>> reporter: police is saying this is still an ongoing investigatn eve though it looks like a murder suicide. moments ago four detectives from montgomery police just showed up walking the property line about the past 10 minutes inspecting e area of the garage and front of the house. earlier today, police told us they were called to this home two times yesterday. one of those times it was the murder victim who called herself just minutes before she was killed. police say the two deaths appear to be a murder suicide sparked by workplace dispute. carolyn mattingly, a well-known potomac realtor was found dead in her garage yesterday afternoon after a small fire was reported in her home. about an hour before the call for the fire came in. carolyn mattingly called police herself to report her car had been vandalized. >> when they arrived, they found a vehicle with four flat tires.

they spoke with the complainant, carolyn mattingly. we took the report and left. >> reporter: that was at 1:15. and then after that they got a car of a car off the road and found the body of andrew racca and a handgun and then they got another call, this time a fire at the home. that's when investigators called her husband and started piecing together what happened. >> they learned through carolyn mattingly's husband that he was at work and there was a dispute at work involving an employee there, andrew racca. >> reporter: richa mattingly is compreh exe vice president o the foundation where racca

worked. >> racca had been accused of theft at the workplace. >> reporter: police say the investigation is ongoing. it appears after being confronted at work by richard mattingly, racca went to mattingly's home. >> we're the rising somehow he c carolyn mattingly, killed her by a means still under investiga and then fled. >> reporter: police say mr. mattingly told them that he had told racca the day before on monday he was going to report him to police. police believe racca killed himself because they found a gun inside his car. mark segraves, news4. >> thank you. to late developments, the resignation of secret service director julia pierson. 24 hours after a blistering day of bipartisan criticism from congress it appeared her job was in jeopardy but one final misstep was the last straw.

>> reporter: the pierson support collapsed after she failed to report to congress and the white house what happened in that elevator down at the cente for l just 15 days ago. secret service director, julia pierson resigned after disclosure of the atlantic incident, a man with a gun close to president obama. lawmakers were surprised and it was difficult for me to sleep last night. >> reporter: she testified the president's security was breached once this year when omar gonzalez made it inside the white house on september 19th. as gonzalez pleaded not guilty, came details of a scare three days bore he jumped the fence. secret service allowed in the elevator with the president a security contractor with a pistol and record of arrest for assault. >> reporter: tha sounds terrible. >> former secret service agent says the good news

the man had his hands in sight on a phone. >> that's safer? right. >> reporter: eyeballs don't shoot. why didn't they say get out? >> reporter: that's something they should have done. >> they kept it secret. >> that's something the white house learned yesterday. >> reporter: today, when the president met with netanyahu, he had the secret service rank and file. >> reporter: these guys wake up everyday to protect the president. >> repor it was agents themselves who leaked the story that forced their boss to quit. the recent set of security lapses since barack obama became president. remember in 2009, the salahis crashed the white house dinner

without an invitation and secret service agents hired prostitutes during a trip and then leaving a bullet at the hay-adams hotel in d.c. while visiting a woman. someone called police after the agent tried to force his way back into the room. the following month a fake sign language interpreter stood just a few feet away from president a during nelson mandela's funeral service in south africa. the nation's first ebola patient was on one of their flights that traveled through dulles airport. the centers for disease control says the patient was not contagious at the time. a hospital in dallas admits it made a mistake when dunkin first visited the facility and was sent home with antibiotics even though he told the intake nurse he just traveled from liberia. now, health officials are looking for any who had contact

with him. also being monitored is a group of school-age children dunkin came into contact with. how could the hospital miss the liberia trip and ebola-like symptoms. live from dallas to hear what the hospital is saying about this misstep. the man charged in hannah graham's disappear is getting ready to go back to court. matthew's hearing is tomorrow morning and causing police to look at other unsolved cases. >> jesse matthew will appear in court tomorrow morning on two reckles driving charges and scheduled to appear on the abduction charge for hannah graham but rescheduled for december. meanwhile, there is no let-up in the search for graham. police have the largest group of law enforcemt officers to date on the ground. they're searching for any sign

of graham, along with volunteers. have gotten more than 3,000 tips from the public. investigators in lynchburg are looking to see if there was a possible ce jesse matthew and cassandra morton in 2009. he is not a person of interest at this ti but they do want to know if he was in the area when morton was killed. >> atm records or bank records or credit card statements to see did he use something that shows he was in lynchburg, virginia. >> detectives in newport news are looking into any possible connection between matthews and two won who disappeared in 2003. matthews was a student at newport university when they vanished a few months apart and we learned he left the school in the middle of a semester. the university isn't allowed to release details for the reason behind that because of privacy

laws. it's prachbt matthews has not been connected to the cases in lynchburg and newport news but they are looking at every possible link but the evidence does link matthews to morgan harrington in 2009 and 2005 sexual assault in fairfax. >> now, what appears to be a tragic accident involving teenagers. told a 13-year-old boy is dead and his best friend shot him. this happened inside an apartment complex in downing street northeast d.c. pat spoke with the victim's father live at the scene. what are you hearing? >> reporter: well, chris, they were good friends. everyday they played video games. last night it was gunplay and now one of them is dead. it happened last night but police still here today

gathering evidence from this sad shooting scene. the victim, 13-year-old caldwell shot by his best friends in what some are describing as a terrible accident. the godfather on who pulled the trigger. i wouldn't think they were playing with it. he knows betser but clearly he had a bad choice of judgment last night. >> as the father of the victim was leaving today, he said he hoped no charges would be brought against the shooter and asked not to be identified. i hope he doesn't get charged. >> r why is that? >> because they both did something stupid. i hope he doesn't get charged. >> reporter: what happened last night has people in the neighborho talking. >> if you're going to get a gun and get it legal and do the right thing. don't have guns sitting around children. they don't know no better.

they think they're toys. >> i think they should have guns to protect their house but the children should not know where they are. >> reporter: the scene at the 1400 block of downing northeast, an apartment the 14-year-old shooter shares with his mother. as crime scene techs gathderred ev -- gathered evidence, they continued to work the case and sources say it's being worked as a possible accident. if they determine the gun belonged to the 14-year-old's mother, she could face criminal charges. shortly after this happened, that 14-year-old was across the street leaning over the chain linked fence. he was hunched over, crying. a woman came over to console him and gave him a hug and words of comfort. that woman was police chief kathy lanier. live in northeast, pat collins,

news thanyou, pat. a father killed trying to protect his son outside a local swim club. why the deadly dispute may have stemmed from a local party. and nu details about michael phelps dui arrest and what he was doing hours before he was pulled over in maryland. taking a trip usually involves taking a trip on one of these. metro has a pretty major replacement coming up. if they could have all those escalators working in the next week, that would be great. weather similar to today and tomorrow but watch what happens. we see possible shower and thunderstos

court documents are providing new details about michael phelps drunk driving arrest. he admitted to have drinks at the casino in baltimore and stopped in his white range rover yesterday morning. phelps couldn't complete the sobriety tests and smelled like alcohol. the officer said he saw him

speeding in the fort mchenry tunnel going close to 85 miles an hr in there. phelps said he is deeply sorry. metro about to take on a huge project and riders they just have to get used to it. we first told you about the escalator replacement at the bethesda station, but those aren't the only ones. now at the metro station. adam, sounds like some headaches ahead. >> reporter: definitely. if you use the entrance at metro center at 12th and g, better find another way. metro is ripping out and replacing escalators up and down the system. before you can get on the train, you usually have to take a ride on one of these. the days are numbered for these two escalators at 12th and gee. they say good riddance. >> the escalators here are

always non-functional. >> reporter: in about two weeks they will shut down the escalators. they're about 20 years old and constantly exposed to the we're going to be close iing these escalators off for a period of month to do repairs. >> reporter: at the end, new escalators with a new canopy. we told you about the huge escalator project at bethesda. riders should get used to seeing these kinds of projects up and down the system. a new contract just awarded. >> it it's about $150 million contract over several years for full replacement of brand new escalators up to 128. >> you may or may not know this but metro has more escalators than any system. over 600 of them.

why maintaining them is important. eliana says it's about time. >> they're going to replace them. is that a good thing? >> awesome news. >> reporter: a bit of inconveniee but hopefully a smooth e ride. back here at metro center. metro says about 4,000 riders use this entrance here. there are three other entrances at metro center that are available for you to use. reporting live at metro center, tuss, news4. it started out foggy today but the sun finally came out. >> it finally came out. my windshield wipers went woosh, woosh, and that was it. it was just the one. i have to get that checked. let's take a look and show you what's happening now. look at this. this is really exactly what happened yesterday, started off with fog, saw a couple showers and the evening looked great

with clearing skies. that's a phenomenal shot and today is what we see tomorrow, almost a carbon copy. winds out of the east at 6 miles an hour and 69 towards martin burg and 74 here. it's not too cool across our region. th comes later this week. radar is clear just about everywhere. one shower towards the culpeper area. that's about it. we're starting to see clearing skies. those same clearing skies will allow fog during the night. a couple storms, one towards boston brought them 1 to 2 inches of rain, not moving our way. the other one is moving towards chicago. that storm system will get its act together the next 24 hours or so, it will bring very chilly

air with it. let's talk about your thursday. fog for sure. i think you will see it tomor, i-95. same deal we saw during the day today. you saw them in fredericksburg and quantico. could happen just about any where. friday, can't rule out an isolated shower. just on the breezy and warm side. good look for the nationals. that night, friday to saturday, here comes our cold front, not just showers. i think we will see thunderstorms that could produce strong local wind and the front is out of here on saturday. we're not talking rain on saturday but it will have a pretty big impact on your day. high temperatures tomorrow. 77 d.c., 78, gaithersburg, 78 in fredericksbu, adale very similar to what we saw across

our region today. we're back to 77 on friday. during the day, no problems. what about that nationals game whether playing 12:00 or 3:00, weather looking nice. can't rule out an isolated shower. temperatures around 77 at the 3:00 hour and 6 p.m., we see a chance of showers ahead of that frontal boundary but temperatur in the mid-70s. 69 on saturday, 65 on sunday. we warm up pretty nicely early next week. the weekend, talk about the cooler weather, on the cool side. winds gusting 20-30 mour saturday. 30 sunday morning and we may be talking about the first frost of the season for some in the next couple of days. murdered outside a swim club

of a good samaritan and how it cost him his life. and the first ebola patient g signs of improvement and his contact with school aged family members and what family members and what famin fairfax countyhat we had to cut a lot of waste. we consolidated offices. started sharing printers. we can walk a few feet. replaced computers, but kept the monitors. they still work fine. we even discovered that the phone company overcharged us by three miion dollars! i approve this message because congress doesn't need another right winger. they need someone who can balance a budget.

oh, and we definitely didn't need so many government studies.

i love bacon so much,his sub. i'm launching a line of bacon jewelry. aw, i've seen those online, but-have you ever seen bacon brows? what was that? i was just putting the finishing touches on my bacondor. everyone loves bacon at subway. try it on the chicken & bacon ranch melt. subway. eat fresh.

more air strikes targeted isis terrorists today but the militant group continues to advance to baghdad. air strikes have had mixed results so far. progress in the north where the u.s. has allies but isis still s dozens of cities and border crossings and they have their sights set on baghdad where they are moving on three sides. after six days of demonstratio pro droer demonstrat in hong kong don't show signs of slacking and they're calling for the resignation of the city's leader and chief executive and the right to freely elect their own leader. >>somebody called in a bomb threat to sandy hook today. it was quickly evacuated and

parents picked their children up and school was dismissed early. the school building and grounds checked. they didn't find anything. it's been almost two years since a gunman killed 20 students at sandy hook. the original school building has been torn down. the next time you come into contact with a d.c. police offir you could find yourself on camera. today, they started wear ig pilot cameras. wearing five different devices worn on the torso or attached to eyeglasses. the cameras will provide transparency but participating officers have a chance to give their feedback after wearing them for six months. the man with ebola and where he remains at a hospital in dallas. drivers beware, a new list of cars most likely to get

a maryland father lost his life trying to save his son during a fight. police are on the lookout for his killer. >> she shooting happened in the

parking lot near the school, a popular cut-through for students. tracee wilkins reports investigators a working around the clock to find the alleged teenage gunman. >> we believe he is still local. >> reporter: police say 19-year-old deion warren is the man who shot and killed mitchell white, a father, as he tried to protect his son last night in bowie. up arrival, they located the victim, mitchell white in the parking lot suffering from a gunshot wound to the upper body. >> reporter: last night's shooting stemmed from a party and according to police an argument between two groups of kids there and the bel air swim and racquetball club last night. >> as our victim attempted to intervene another subject, not involved in the altercation with his son produced a handgun and shot our victim one time. >> reporter: police say a group of teens was beating up the teen when his dad stepped in and

shots rang out and 39-year-old mitchell white was shot dead. detectives say warren did it. there is a warrant for first-degrr and related charges. we continuing to follow up on leads and searching for mr. warren. >> the shooting was around 5:30 in the afternoon. the club was closed but the parking lot is a popular cut-through for high school students. the victim's son is a popular student at bowie high. they say people who live there have no reason to worry. >> this is an isolate incident and rare occurrence within the city of bowie. >> reporter: they're offering a $25,000 rewar leads to arrest and conviction in this case. tracee wilkins, news4. in virginia, a child has been hit by a truck. pat lawson muse is live. >> police tell us it is a

6-year-old child hit that happened not long ago in the mt. vernon circle of fairfax county. we're told the child has life-threa injuries and being airlifted to the hospital right now. we're still trying to figure out exactly what happened, exactly what led to the accident. ne4 reporter is on the way to the scene and we'll bring you updates as soon as he gets them. >> thanks, pat. a high profile resident of falls church already served time for molesting underage girls and tonight he's been arrested for allegedly assaulting another child. michael gardner head of the falls church democratic committee and married to the former mayor of halls church. now held without bond. the victim was a family member, 13 years old at the time of the alleged abuse in 2009. police say they didn't know about this latest allegation until after gardner got out of prison. he was convicted of molesting

between and and 13-year-old girls at a slumber party but it was overturned for character evidence. a the man with ebola was taken to dulles airport and then to dallas. he wasn't contagious at the time but in dallas they said it put more people at risk for contracting deadly virus. he remains in isolation. jay. >> reporter: good evening. a lot unfolding this afternoon. first, you talk about the condition of the patient in this dallas hospital and isolation unit. it has been upgraded. that while we're also learning more about some people he may have come in contact with before he was admitted. then the hospital that may have opened up several more people in this area to contact with this

man carrying the deadly virus. the mission in dallas is now two-fold. this is all hands on deck. we understand that. >> reporter: medical specialists are working around the clock to treat the first patient diagnosed with the deadly ebola virus in the united states. while the teen for the center for disease control works on the ground going door-to-door at the dallas apartment complex where the patient spent several days with his family trying to identify more than a dozen people who may now be at risk for infection including according to texas governor rick perry, a group of school aged children. thes children have been identified and they are being monitored. >> reporter: this afternoon, parents at a dallas elementary school that one of those students attended were told to pick up their children before the final bell. what are you worried about? >> about them getting sick and getting the virus. >> reporter: the hospital also confirmed the patient first visited their fac days before he was admitted and told

an intake nurse he had just traveled to north texas from liberia but only sent home with a prescription for antibiotics. >>regretfully that information was not fully communicated throughout the full team. >> reporter: potentially putting even more people at risk. >> weish it were somewhere else but the fact is it's here and we have an extraordinary team of men and women passionate and compassionately delivering care to this individual. >> reporter: this afternoon, the patient's condition was upgraded from serious to stable, stability doctors hope to maintain as they work to save their patient and prevent the spread of the deadly disease. >> reporter: those doctors will not discuss all the treatment protocol including whether or t they intend to use any type of experimental medicine during that treatment. that is the latest in dallas, jay gray, news4. thank you. doctors say people should not panic. the ebola virus is not airborne

like the flu or a cold. it only spreads by coming into close contact with a sick person's bodily fluids. that includes blood and urine. only people already experiencing symptoms are capable of spreading the disease. casual contact doesn't do it. health officials say an organized containment protocol can help the spread of the virus and they've seen. work effective in nigeria where there have been no new cases over the last 21 days. ebola and changes at secret service are major stories making headlines today. in just about an hour nbc brian williams will host q & a on that and more. you can see it at 7:30. of course, nightly airs at 7:00 right after this newscast. rhode island health officials have confirmed a child has died after she contracted enterovirus. are not releasing her age.

we know she died last week. doctors say this is an isolated rare case. along with enterovirus she also had a staph infection. there is no vacancy in or specific treatment for enterovirus but health officials say most people who contract it have mild symptoms similar to a cold. the national mall is home to a six acre piece of artwork but you need a ticket to the national monument to check out the view. check out the view from the observation desk. isn't it cool? it's a take on the latin phrase which translates to out of many, one. he says it's a face composite made from dozens of photos taken in washington. the new artwork is located next to the reflecting pool. out of california, has been shot and killed. why the person who pulled the trigger isn't facing charges. plus the move to ban the name redskins on the radio, hear

the plan that could make that a reality even if the team doesn't change its name. >> when is the first real cool weather moving in. happening this weekend. i'll tell you what to expect as far as temperatures go.

lyvette. the mayor of a los angeles suburb is dead after being shot by his wife. police say daniel crespo's wife pulled out a gun and shot him after he punched their 19-year-old son in the face. lyvette crespo says her son was trying to intervene in a fight between the couple yesterday afternoon. the wife and son were questioned at the police station and released several hours later. >> why did she kill my brother? why did she do it? why couldn't she talk? tell me something or let me know something, you know. >> prosecutors will decide whether to press charges against crespo's wife. he was elected to the bell gardens city council in 2001 and became mayor last year.

california is putting some limits on the use of drones. that will have a pretty big impact on hollywood. a new state law is now in effect banning paparaz from using drones to hunt down and take photos of ce drones have the about to fly just about any where. the california law is in response to the paparazzi taking pictures and also for the general public as well. fans may not hear the term redskins on television even if the team doesn't change its name. the federal communications is considering a petition. it was started by a law professor who says it violates the rules of indecent content. the chairman has not issued a time content. the redskins owner said he's never going to change the team's

name. a report on vehicles that get the most tickets. in the number one spot, sub burr rue wrx. 1 in 3 of drivers of those cars has a recent ticket. up next, the pontiac gto. scion frs. toyota supra, subaru tribeca and last on the list, the toyota prius. of course. and a taxi driver accused of killing an alexandra police office and what the is revealed in his battle for mental illness. some people could see a s[ male announcer ]ee a at northrop grumman,

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northrop grumman. family members took the witness stand today for the man accused of shooting an alexandra police and leaving him with permanent brain injuries. the revealing kashif bashir's mental injuries. >> reporter: good evening, the defense strategy is focused on bashir's disturbing personal history and the effect it has had on his thinking. psychiatrist, dr. daniel scheneman testified as a defense interest that mental illness is genetic. one in five sisters talked about how his mother committed suicide in pakistan in 2000. she awoke hearing kashif cry,

their mother was on fire in the middle of the floor of their home. he was the one that put water on her and she died 10 days later. the doctor said he is a paranoid schizophreni delusional, lost touch with reality thinking people controlled his thoughts and he thought he was dead already in another dimension. the defense claims 29-year-old bashir is not guilty by reason of insanity in the shooting of motorcycle officer peter laboy when he shopped his taxi. his father seen in this video from an earlier hearing testified today he shared the cab with his son. his father was asked if he was ever concerned about his son's behavior. he said, sometimes. did his son drink ail cohall. he said, we don't. we're muslim. was the father surprised he had been drinking the day officer laboy was shot?

he said, yes. >> reporter: the defense plans to call bashir to testify in his own defense. his charge on the trial of attempted capital murder could wrap up tomorrow at the latest. live at the courthouse, chris gordon. than a lot, chris. besides being the first of october today is the day several l go into effect, pot was doesn't mean it's legal, just decriminalizes a small amount of pot. and domestic violence in front of a child will now face up to five years in prison. a lot of workers in montgomery county will see a bump in their paycheck. the minimum wage went up to $8.40 an hour today, part of a new law that raised the county's minimum wage to $11.50 by 2017. it will cost you more to work out at the gym. the so-called yoga or wellness tax adds to your cost at health

clubs and see the extra charge for bowling, water delivery service, carpet cleaning and car washes. the tax is intended to offset a cut to d.c.'s income tax. >> more people end up going to the gym when it starts getting colder outside. >> you know how it will impact me the most. >> how? >> not the gym. >> bowling. >> which is already expensive enough. th game will be $15.25. looks like today will be very similar to tomorrow. if you enjoyed today, you will enjoy tomorrow. we saw fog earlier and shower activity early and shower activity in the afternoon. here's a great shot towards national harbor, things are getting dark these days and the spinning wheel all lit up. i'm sure you can see that crossing the woodrow bridge.

and 74 degrees right now, temperatur dropping to 70s and upper 60s by 11:00. that's in the city. most will be in the low 60s by now. we've seen the clouds clear out. this is what will be happening the next couple of days. this is tomorrow. not too much in the way of significant weath tomorrow. maybe an isolated shower. watch what happens on friday. we turn our attention to the west, where a strong cold front begins to move on in. the coldest air of the season is moving our way. this frontal boundary will move not during afternoon on friday. the nationals game looks really good. through the afternoon to saturday and strong and windy conditions and fairly heavy rain. then, behind it, an even bigger story, windy and chilly on saturday and even cold saturday night. talking about temperatures in the 30s for many of you.

tomorrow, early fog, clearing, strippin 75-79 degrees. after 6:00, the nats game for the rain, so no problem. 65 on saturday, 47 for an overnight low on sunday. how about you folks in northern virginia? how about these low temperatures? in leesburg, 39 in warrington, 44 in fort bell vedor and fredericksburg. get out that extra blanket. i think you will be needing it. get the firewood ready. a lot of you this time of year love to hear that fire going. and 74 the rebound monday. even though we're on the cool side this weekend, we will warm back up and i don't see another sign of cool air for at least a week. today is the firt of october. that means something around here.

that's right. the post-season is officially under way. nats will find out who they face on friday. plus, the orioles play in less than 24 hours in game one against the tigers. why the birds don't mind being the underdog in

this is the xfinity sportsdesk, your home for the most live sports. >> you probably have a certain lineup you may want to use against the pirates, different way to attack the giants. >> who do you want to see them play? >> i'd love to see them play the pirates. where's your playoff beard, dude? >> you don't want to say who's playing the best now. right now, giants are a better team but pirates are hot. we're going to watch this game to determine who the nats will play on friday.

will it be the pirates or guy ants? all this excitement has us reflecting the last time washington was in this position. it was two years ago, inexperiend team wasn't very sharp, especially drew storen right there. two outs away from moving on. st. louis scored four runs in the inning knocking the nats out of the playoffs and left storen with the low point of his career. had to live through it, saying a l of things and all that stuff. i really think drew has been way past that. in baseball you have to move on. if you dwell on that, it will bite you. >> i have to do what we've been doing all year. you don't go out thinking too much or i will make up for this or i will change it. you do your thing. it's a funny game. certain things happen in this game for a reason. all about making the most of the

situation you're in and you learn from those and move on. >> he is certainly ready. the orioles and tigers will play game one of the aldf tomorrow. this will be a tight series, tigers in the world series two years ago had the potential to beat any one but orioles have shown they have the potential to beat any. they worked out before the game. the birds won 96 games this season in their first al east crown since '97. they did all this despite losing their starting catcher, third and first baseman due to injury and suspension. pretty incredible. even with their impressive resume, many of the tigers as the favorites. they tell jason they're just fine with that. >> we've had a lot of things we had to overcome this year and everybody that stepped in has tone an unbelievable job. people didn't think we could do

what we did. we did. people d t we can do anything more and we will do what we can do. >> making sure that something on paper doesn't happen. i'm as curious as you are and put our guys in position and not become prisoners to what you or they have done all year. >> i don't care if you're a kansas city fan or not, i hope you saw this game last night. that's the royals. they rallied from four runs down against the as, trying to tie a post-season record with seven stolen bases in one playoff game. dyson taking it here and taking off, deep to right, sacked fly, brings dyson to score the tying the game at seven, sending it to extra innings. both teams scored in the tenth and then in the 12th and perez becomes the hero of kansas city, bringing home the game winning run as royals move onto the alds

where they'll take on the angels having already proven anything is possible. that's the game that kicked this all off. hopefully this will be a little snip pet of the excitement we see the rest of this month. all the talk about baseball play has wizards fans talking nba playoffs and expectations. e wizards are on the radar as contenders. we have a target on as one of the top 10 teams in the east. we don't expect teams not to bow down and not get their best shot. we have to get the best shot and be ready. >> we come back and are different teams. we can't look back, we have to look forward to what we can do this ar. >> just think we were talking last season with the wizards and how little experience they had, with just one year under their belts the difference that will

make. paul pierce was talking about that at practice, having a little taste of that makes all the

on our broadcast tonight, ebola emergency on american soil. and now the search to find everyone who came in contact with a dallas ebola patient including at least five children. and tonight, some tough questions for the hospital that initially sent him home. and our other major health story tonight, this growing mystery now in 42 states, the virus striking children struggling to breathe and new case now of sudden paralysis. stepping down, the embattled head of the u.s. secret service resigns under intense pressure as we're still learning more about the latest security lapse. and at home with joan lunden speaking candidly about breast cancer and the private battle so many women know all too well. "nightly news" begins now. from nbc news world