Reporter surf pounding in alabama. Storms streaming on shore in louisiana. All ahead of Tropical Storm karen. Now less than a day from making landfall on the gulf coast. Hide from the wind, and go visit a relative for the weekend. Reporter in mississippi, they are putting everything up. And slamming for sandbags outside new orleans. Better to be safe than sorry. We werent prepared before. Reporter several oil rigs shut down in the gulf. Some of those furloughed fema workers back on to help prep for karen. Up to ten inches of rain, and five feet of storm surge is only one of the weather headlines tonight. A record setting snowstorm is attacking parts of wyoming, nebraska and south dakota. The rapid city airport is closed. A whiteout, as stretches of i90 in south dakota shut down. And snow, up to two feet deep, smothering backyards. Like this october monstrosity. Tearing at trees and power lines. Threatening iowa, minnesota and others along this cold front, with more severe weather. Ginger zee reporting in from the gulf tonight. Clearly, going to be a troubling and challenging scene for the gulf. Well check in with ginger and that forecast as we continue here. In the meantime, we move on next to washington tonight, word of yet another frightening incident playing out in the nations capitol. A man set himself on fire on the National Mall this afternoon, a witness says he dumped gasoline on his head. And then lit himself on fire. They took off their shirtsz to dowse the flamps. The man has burns on 80 of his body. Of course it comes a day after that other harrowing scene in washington. The young mother with her baby in her car who triggered 38 minutes of chaos at the capitol. Miriam carey shot dead after a highspeed chase with police. Her baby girl is all right. Tonight we learn more about her mental state. Family and friends speaking out. And correspondent Pierre Thomas is reporting. Reporter we now know that miriam carey was the woman behind the wheel, toddler in tow who led police on a high speed chase. This man saw her tuesday. Everything was okay. She went about her business. Its just reporter abc news learned carey had a history of mental illness, appeared to intensify after her baby was born in august 2012. It was then her mother tells abc news, she was diagnosed with post partum depression. In december, according to a stamford, Connecticut Police report, a man described as careys boyfriend called in expressing concern for the safety of their daughter. Then five months old. He said carey was delusional, emotionally disturbed. The boyfriend claimed carey believed she was a prophet, whose home was under 24 hour surveillance by president obama and national tv networks. She was taken to the hospital at least two other times that month. A report by connecticut authorities describes her as on medication for unknown mental illness. With a Family History of schizophrenia. She seemed to stabilize, but something went terribly wrong. And by yesterday, carey was battling police, who killed her firing more than a dozen shots. She was apparently unarmed. But police believed she was a threat. What were police thinking at that moment . They are thinking, shes about to use this car as a lethal weapon. And so that justifies deadly force to shoot at her. Reporter police are searchining through careys computers looking for any clue to point toward motive. Tonight Law Enforcement tells me they may never discover a sane answer as to why this happened. David. Pierre tom this our washington bureau. Pierre, thank you. Tonight reports of a troubled young mother as pierre points out and what role post partum depression might have played, raising so many questions, so i want to bring in abcs chief medical editor dr. Besser. We were talking late today. You are convinced this is something more serious . You know, i am. This doesnt sound like post partum depression. If she was hearing voices, was experiencing paranoia and delusions, it sounds like a very, very rare condition called post partum psychosis. Thats a medical emergency. The baby can be in danger. The mom has no touch with reality. We need to know more about her medical background to know if that was what was going on. In the meantime, rich, this reignited an important conversation in america, about post partum depression, which is far more common. Yes. This is very important. We need to make it easier to talk about this. One in 2e7b women experience post partum depression as a pediatrician ive seen this frequently. The symptoms are common. There is no enjoyment in the baby or in anything else. There is anxiety something bad could happen to your baby. Then there is overwhelming guilt about being a bad mom. If you have this, or you know someone who does, you really want to reach out, because theres treatment thats available. You dont need to endure this. Rich besser with us from the west coast. Thank you. We move on to that other crisis in washington. The Government Shutdown now in its fourth day. President obama, vp biden both getting a sandwich, both pointing out what the owners of that restaurant are doing for furloughed government workers. Part of the reason were here, were starving and the food here is great. The other part of it, though, is that right now, this establishment is providing a 10 discount to all federal workers, who are on furlough. Tonight the number American Families being hit is growing. Just as we track down a congressman at the center of a controversial moment with a worker from the park service trying to do her job. Here tonight abc Senior National correspondent jim avila. Reporter from the base of the rockies in colorado springs, home to more federal employees per capita than any other american city, protests and pushback against the shutdown, that has unemployed 800,000 nationwide. Im basically shut off. My family is not going to get fed. Bills not going to get paid. Reporter she is a teacher facing a shutdown layoff. And shes scared. And wants to tell her congressman directly. I have a family to take care of. And its real to me. And its affecting me. Its hard. Reporter we took her message to her congressman, tea Party Supporter from colorado doug lambor. Thats regrettable. But these are big issues. I dont think the republicans want to give 100 to the democrats, they dont want to give 100 to us. Reporter if thats difficult for tracy school and others in her district . I regret that. I wish it was not that way. Reporter we went to visit another congressman today, you may have seen texas republican randy nugebauers outburst at a park ranger doing her job at the world war ii memorial. How do you deny them access . Its difficult. It should be difficult. It is difficult. Park service should be ashamed. Im not ashamed. You should be. Reporter today the congressman was not so anxious to reflects on that verbal shaming. Avoiding comment this morning, but unable to out run news cameras this afternoon. Is that what you said . You berated a woman who had nothing to do with the shutdown s. There a reason for that . I meant no disrespect to the park ranger. Reporter and this is just week one. Jim avila, abc news, capitol hill. Just week one as jim points out one of the leaders of the center of the showdown, john boehner sits down with George Stephanopoulos and abc news exclusive sunday morning on this week with george. In the meantime, we head out west to oregon, where this evening officials are studying this dash cam video, watch here as a father pulled over by police, his three children in the car. Police warned him to stay put. Sir, get back in the car for me now. Sir, please back in your car for me now. He then approaches. Opens fire, a deadly shootout, that father later died. That cop recovering this evening. The children unharmed. Officials tonight trying to determine what made the father snap. Stunning new developments in that other terrifying encounter on a highway, this one right here in new york. That video captured on helmet cam showing the moment an suv is swarmed by bikers, a young family inside. For the first time tonight, we are seeing what happened next. After that camera stopd rolling. Tonight police say they have a suspect in the attack as a new eyewitness speaks out. Abcs lindsay janis back on the story tonight. Reporter imagine this, the rumble of engines, back after bike surrounding your car. Thats what alexian lien behind the wheel of that black suv saw. That biker slowing down, before the impact setting off the harrowing eight minute chase. Liens wife called 911 four times. Before this. The final frame of the video. But now, these pictures, which police are using to try and identify the bikers, showing what happened next. On the ground, surrounded by bikers, his terrified wife hanging out of the passenger side door. Once the bikers fled, here clutching her child. Tonight, police say they are now looking for half a dozen additional bikers, who may have had a role in the assault. The motorcyclists see it differently. One telling abc news what he saw. Once you put your car in the midld of a bunch of bikes, what is going to happen . On the highway, he started this lane to that lane, speeding up. Getting up on the back of the bikes. Reporter today Attorney Gloria Allred spoke on behalf of edwin mieses, the biker left paralyzed. He was attempting to diffuse the situation. Edwin did not do anything that justified mr. Liens decision to drive his range rover over him. Reporter this just in. The man seen in the video briefly opening the driver side door of the suv turned himself into police. Charges against him are pending. Yet, another twist tonight. Police say one of the bikers was an off duty undercover narcotics cop. David, they say he did not intervene, when the assault was happening, for fear of blowing his cover. A horrible story all week. Lindsey, we appreciate your reporting. Alex rodriguez tonight in the headlines. The yankees star suing major league baseball, he claims they are on a witch hunt trying to force him out of the sport. Rodriguez facing a 211 game suspension for his alleged uses of performance enhancing drugs. An image from italy, thousands turning out to see pope francis on his first pilgrimage to the town of the birthplace of pope francis. The pope seen comforting a disabled child, a tribute to st. Francis who shunned wealth for a life of service. Much more ahead on world news this friday night. An abc news investigation, a 20gs 20 speed trap where police are caught. Trailed by a chopper as they break the speed limit. Wait until you find out where they were headed. And later tonight, right here the movie everyone is talking about, youll be holding your breath, and this evening a real life astronaut, who inspired the film, what its like one step away from disaster. He sits down with us, our person of the week. Were back in two minutes. You can prevent gas with beano meltaways, or treat gas with these after you get it. Now thats like sunblock before or sun burn cream later. Oh, somebody out theres saying, now i get it take beano before and therell be no gas. Take beano before and i had like this whenfour inch band of bumps it started on my back. That came around to the front of my body. And the pain from it was it was excruciating. It made me curtail my activities cause im really an outgoing kind of a guy. And, uh, i like to play sports, i play basketball, i play pool. I did not want anyone to brush into me to cause me more pain than i was already enduring. I went to my doctor; he said well you actually have shingles. This is a result of you having chickenpox as a kid. It totally caught me off guard. I put the pool cue in the corner. I couldnt do those things anymore. The basketball it caught dust. I wanted to just crawl up in a ball and just, just wait til it passed. \ a 20 20 vest gagsz breaking right here first. Police enforce the speed limit, but is there a double standard . Tonight the choppers overhead, our correspondent trying to keep up with them. And where were those officers headed . Heres abcs matt gutman. Reporter they are a danger on the road. Cops speeding for no good reason. And sometimes killing. So we decided to turn the tables. Set our trap. We deploy four surveillance teams. Three, two, one. Mark. Reporter clocking at different check points where the speed limit is 65. And a chopper tracking from the sky, so we dont break the law by speeding ourselves. Its not long until this cruiser flies by our check points. Going about 85. Its hard for us to catch up. Reporter no lights. Nosey renes. The offers destination hardly an emergency just dropping off evidence at the state crime lab. I dont have a comment. You dont have a comment . No. Reporter speeding cops get coming. This officer cruising by at 79 miles per hour. Our chopper follows him to you wont believe this, a doughnut shop. And take a look at this Highway Patrol suv. So this guy is going well over 80. His destination a Highway Patrol training academy. Where the speed demon is, yes, a driving instructor. A lot of folks want to see you set an example, and going about 15, 20 miles over the speed limit, there might be some concern. I dont understand what youre saying. Matt confronts these officers some closing the door in your face. You go to their superior. They open the door, allow us to talk to them. Were going to have more on 20 20 tonight. We get the tickets, they dont. Matt, well see you on 20 20. Much on this special out of bounds tonight at 10 00, 9 00 central. Tonight, see this collapsing showing the show must go on. Later in the index, the singer who even impresses michael bu e buble. [ coughs, sneezes ] i have a big meeting when we land, but i am so stuffed up, i cant rest. [ male announcer ] nyquil cold and flu liquid gels dont unstuff your nose. They dont . Alka seltzer plus night fights your worst cold symptoms, plus has a decongestant. [ inhales deeply ] oh. What a relief it is. Hands for holding. Feet, kicking. Better things than the joint pain and swelling of moderate to severe rheumatoid arthritis. If youre trying to manage your ra, now may be the time to ask about xeljanz. Xeljanz tofacitinib is a small pill for adults with moderate to severe ra for whom methotrexate did not work well. Xeljanz can lower your ability to fight infections, including tuberculosis. Serious, sometimes fatal infections and cancers have happened in patients taking xeljanz. Dont start taking xeljanz if you have any kind of infection, unless ok with your doctor. Tears in the stomach or intestines, low blood cell counts and higher liver tests and cholesterol levels have happened. Your doctor should perform blood tests, including certain liver tests, before you start and while you are taking xeljanz. Tell your doctor if you have been to a region where certain fungal infections are common and if you have had tb, hepatitis b or c, or are prone to infections. Tell your doctor about all the medicines you take, and if you are pregnant, or plan to be. Taken twice daily, xeljanz can reduce the joint pain and swelling of moderate to severe ra, even without methotrexate. Ask if xeljanz is right for you. Still running in the morning . Yeah. Getting your vegetables every day . When i can. [ bop ] [ male announcer ] couldve had a v8. Two full servings of vegetables for only 50 delicious calories. Looking back on a champ yip band surprise. And our viewers to the rescue. This weeks index with that old saying, the show must go on. Look at this pile up at the High School Marching band in texas, one tu one tuba taking a tumble. The other musical moment going viral. 21yearold chelsea getting the surprise of a lifetime when singer Michael Buble pulled her out of the crude to sing a duet. When she started singing he gets a surprise of his own. Chelsea blows away the crowd and blows away buble, too. And finally, the video so many of you responded to, world news with the american doctor, patients blind one day, able to see again the next. Dr. Tabins procedure done in seven minutes, tonight telling us hes overwhelmed, the donations growing even more. 2,126 world viewers donating 178,000 to give people their sight. You cant beat american generosity. When we come back, gravity the new movie and the real life astronaut with us a step away from disaster. [ male announcer ] this is brad. His day of coaching begins with knee pain, when. [ man ] hey, brad, want to trade the allday relief of two aleve for six tylenol . Whats the catch . Theres no catch. You want me to give up my two aleve for six tylenol . No. For my knee pain, nothing beats my aleve. Then i read an article about a study that looked at the Long Term Health benefits of taking multivitamins. They used centrum silver for the study. So i guess my wife was right. [ male announcer ] centrum. Always your most complete. Crestor got more highrisk patients bad cholesterol to a goal of under 100. Way to go, crestor yeah getting to goal is a big deal, especially if you have high cholesterol plus any of these risk factors. Because you could be at increased risk for plaque buildup in your arteries over time. So, when diet and exercise arent enough to lower cholesterol, adding crestor can help. Go, crestor oh, yeah [ female announcer ] crestor is not right for everyone, like people with Liver Disease or women who are nursing, pregnant, or may become pregnant. Tell your doctor about other medicines youre taking. Call your doctor right away if you have muscle pain or weakness, feel unusually tired, have loss of appetite, upper belly pain, dark urine, or yellowing of skin or eyes. These could be signs of rare but serious side effects. Crestor yes [ female announcer ] ask your doctor about crestor. If you cant afford your medication, astrazeneca may be able to help. Movie everyone is talking about, gravity, one person who knows it, hes been up there, one of the real life heroes who helped inspire the movie. Our person of the week. The new movie gravity about to pull us back into a world beyond us, that hopeless breaking through boundaries and the fear of whats possible, too. Sunday ra bullock is playing an astronaut attached to that arm that comes loose from the shuttle. Her fellow astronaut played by george clooney, and what follows is a harrowing fictional tale, but what so many real life astronauts have prepared for. Including this team, may 2 thou 9, the shuttle atlantis, headed to repair the hubble telescope. The same telescope they travel to in the movie. In real life, one of the astronauts, Michael Massimino. Good to see you, mass. Great to see you. Who saw the movie and saw himself in it. Even my tools, we had a cutter tool to cut a wire inside one of the instruments, its floating behind sandra bullocks head. Theres my wire cutter. He spent more than 30 hours out there o