Joining forces to name our persons of the week. Good evening. We begin this friday night with the breaking news from missouri. The st. Louis county police chief talking to reporters moments ago. Revealing they have several leads after two Police Officers were ambushed. Happening this week after the police chief resigned. That peaceful protest that suddenly took a turn. Gunfire erupting. Protesters and police running for cover. Hiding behind the brick wall there. And when it was all over, that image of one of the officers down. Tonight, authorities do not know if theyre dealing with one shooter or if theyre dealing with more. Alex perez has the story. Reporter a pouring over the images saying they have leads. I think we have a good idea on the investigation. Reporter authorities trying to track down the gunmen that shot two Police Officers. Detectives are working around the clock. They will not rest until we get to the point where we have a conclusion. Reporter thursday, investigators scouring this home tearing apart the roof, but so far no arrests. Got an officer down, officer down, shots fired at their station. Reporter the image, police tending to two of their own at the scene. Others scrambling for wherever they can get it. This is that brick wall where officers were taking cover. Everyone hit the ground around here and investigators believe those gunshots, were coming from across the street, up the hill, as you can see, several hundred feet away. Ferguson, a tinderbox since that Police Shooting here last august that killed michael brown, the memorial still standing, scars from months of protests everywhere. The mayor telling npr late today he has no plans to resign. But thursday night, much calmer. A prayer vigil for peace. Tonight, investigators saying theyre busy following up on dozens of credible leads that have been called in. Alex, thank you. Now to the developing headline out of oklahoma. The Fraternity Brothers with the racist chant. Two students expelled. Tonight, the outrage is growing. Some members of the fraternity, told to be out by midnight earlier this week. Theyve now hired a highprofile lawyer. They want their rights protected. Ryan owens in oklahoma. Reporter their greek letters stripped off the frat house. Their members forced to move out. Tonight, the brothers of ous Sigma Alpha Epsilon say enough is enough. Theyve hired prominent defense attorney stephen jones, best known for defending Oklahoma City bomber timothy mcveigh. Every 19yearold male is entitled to five minutes of foolishness. I think that might in these circumstances have been a good guideline. Reporter the university and its president david boren. I think its time for us across america to step up and show zero tolerance for racism. Reporter have been widely applauded for their quick action to shut down the chapter and expel the two frat brothers seen leading the racist chat. But some Fraternity Brothers feel its not fair to punish an entire organization based on a ninesecond video of a few freshmen. Jones agrees the students actions were inexcusable but says their rights should be protected. This is likely a preemptive strike. By other members of the fraternity. What theyre essentially saying is be careful here if youre thinking about going after any other students. Reporter tonight, the National Chapter saying it had nothing to do with the decision to hire an attorney. David . Ryan, thanks. And we move on to the punishing rains now, dangerous landslides already. 30 million americans under flood watches. 13 states from arkansas to new york. The saturated earth giving way. In the West Virginia charleston here. Oh my good. Screams as the earth starts to cave. The power lines going down in front of them. And just feet from the runway at a major airport. Heres rob marciano. Reporter tonight in charleston, West Virginia, a rush to clear debris, the governor surveying the scene after these frightening moments. A huge landslide, sending onlookers running for c the power lines it was like the ground cracked and it all came down. Reporter take a look from above. The whole side of a mountain sheared off right next to an airport runway, planes still landing above the slide. Tonight, the airport on emergency power. The destruction below, this church, damaged beyond repair. 25 families beneath that cliff out of their homes tonight. This creek blocked by the slide causing the valley to flood. Heavy equipment scrambling to clear a path for the water. Weve got every available resource down here and terrain is obviously difficult to work in. Reporter swollen rivers in ohio sending ice floes downstream. Record rains are swamping streets in shreveport, louisiana. Causing this wall to come down luckily, no injuries. And in slide. Rob is with us now. The storm system has grown in intensity and size. You see the swirl . Still tapping moisture from the gulf of mexico. Flood watches out from arkansas to western new york. Lets time it out and watch this, driving the rain across the ohio and tennessee valleys, into parts of pennsylvania and the virginias. Heavier rain in new york and boston. Some of it will start as sleet and freezing rain early. But will change to all rain. And on the backside, will become snow. Theyd love this rain out west. Record heat today in the west, and into the 90s across southern california. This is expected to last through sunday. Rob, thank you. And now to another travel nightmare this evening for families headed to costa rica. Extraordinary images of a volcano spewing ash. Flights diverted forced to turn back. Ash reaching 30 miles away. The biggest eruption in 20 years. And news about the faulty ignition switches from g. M. Drivers losing control of their cars. Tonight, the automaker agreeing to settle in the case of a young woman that started it all. Rebecca jarvis tonight. Reporter tonight, word of a settlement in the case that exposed a deadly defect in gm ignition switches. Leading to 2. 6 million recalls. 29yearold Brooke Melton died in march 2010 after the ignition switch on her 2005 chevy cobalt slipped out of the run position, causing the car to lose control and crash into a creek. Her mother telling abc last year nhtsa knew about it from General Motors that there was a car stalling and they didnt make it right. But there were all these opportunities that came up. And she died. And she didnt need to die. Reporter it was only after miltons case that investigators began putting all the pieces together, dozens of deadly crashes linked to the same ignition switch. Which could shut down the car and its Safety Systems unexpectedly. As early as 2001, some inside of gm found a problem with the ignition switch. And there were many other families in this case. What about them . Gm has paid 172 million to them, and we expect more to come. And were learning more about the american heroes that died in the black hawk crash. Off the florida panhandle. Another black hawk turning back just moments before. Martha raddatz with the story. Reporter today, off the florida coast, salvage efforts began for the helicopter that went down in bad weather. The two black hawks were doing night training when the fog rolled in. The mission was aborted. The first helicopter made it back to base, the second with the fourman army crew and seven marines did not. The shock of this loss, even more profound because of this young marine, Staff Sergeant andrew seif. One week ago today, the 26yearold stood with his wife dawn, where he was awarded the silver star for combat valor. The marines will mourn all those lost on that helicopter, but also will be celebrating the good things they did as well. This will be a very long celebration. Just extraordinary talent on board. Do we have any idea what caused the crash . It will take a investigate. The fog can come up very quickly and can disorient even the best of pilots. Martha, thank you. We have new reaction tonight after our abc news investigation this week into the battle against isis. Known for the brutal videos. The victims in orange jump suits, single file on the beach. Now, some iraqi forces, some paid for by u. S. Taxpayers, accused of being just as brutal. Tonight, the head of the cia weighing in. Brian ross now. Reporter on the eve of what could be a major victory against isis by the iraqi army and militia forces, the director of the cia, john brennan, today said both sides appear to be involved in horrific human rights abuses. Its tough sorting out good guys and bad guys in a lot of these areas. Reporter brennan was reacting to an abc news report this week which revealed dozens of graphic videos and photos of seeming war crimes, with gunmen carrying u. S. Weapons or men who appear to be Iraqi Security forces or militia fighters. In this scene of torture, americansupplied weapons against the wall in the background. I didnt see any of the photos or any of the videos where someone was trying to stop someone from doing something. Reporter these men celebrate a beheading, the very forces the u. S. Is counting on to stop the atrocities of isis. When we see it, we do bring it to the attention of authorities and we will not work with entities that are engaged in such activities. Reporter the cia directors tough talk comes as the u. S. Has sent almost 3,000 american soldiers to help train iraqi army troops, which are being supplied with 1. 5 billon of u. S. Weapons and equipment for the fight against isis. Could some of that u. S. Aid now be in jeopardy . Action absolutely, and theyre looking to see if some good guys have become the bad guys. Now, to wisconsin, and the new developments in the trial of the two young girls that attacked their friend leaving her to die. At issue, should they be tried as adults . Heres ryan smith. Reporter tonight, a wisconsin judge ruling the two will face attempted murder trials. And tonight, it remains in adult court. Leading their friend into the woods, stabbing her 19 times, and leaving her for dead. All to please fictional internet character, slender man. The ruling leaving parents in tears. But the victims parents, speaking exclusively with david muir, say they are focused on their daughters wellbeing. Dough do you they they should be charged as adults . Its about making sure payton feels she can move on and feels safe, with no fear. Reporter just last month, we heard from the girls for the first time. Telling investigators about their victim. She was my only friend for a long time. Why would you hurt your only friend . It was necessary. Reporter but now, if convicted in adult court each faces up to 65 years in prison. Both of the girls were granted separate dates. They could face a lot less time confinement up to 25 years if convicted in juvenile court. And scientology under fire in a new documentary covering tom cruise, and Nicole Kidman. The film claiming scientology plotted to split them up. And the church with answers of its own tonight. And the mystery lottery winner. The answer is right there in front of you. He won 1 million, so why cant he get his money . And the contestants that bombed on jeopardy. What happened . There was just one left and when it was over even alex trebek was shaking his head. Dont go away. Medicine proven to treat toenail fungus. Use jublia as instructed by your doctor. Once applied jublia gets to the site of infection by going under, around and through the nail. 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Repeating allegations that David Miscavige slapped and punched his underlings. And that scientology operated something called the hole where Church Members were sent for punishment. The doors had bars on them, the windows all had bars on them. Reporter the film, which airs on march 29th, also says the head of the church was so worried that tom cruise was being pulled from the faith by Nicole Kidman that they plotted ways to split them up. The hbo piece is textbook propaganda. Reporter scientology is fighting back hard with online videos. He presented a onesided, false diatribe that can scarcely be called journalism. Reporter it says the site called the hole has a lavish scientology center. Yes, this is the spot he portrays with ants crawling up a wall. Reporter the Church Attacks critics as misfits, admitted liars and professional antiscientologists. Dan harris, abc news, new york. Dan, thank you. When we come back is pope francis already plotting his exit . This man has won 1 million. Just one major problem. And youve seen mean tweets on jimmy kimmel. But did you see what the president had to read . Come on back. Kimmel. But did you see what the president had to read . When we come back. Which is why usaa is honored to help our members with everything from investing for retirement to saving for college. Our commitment to current and former military members and their families is without equal. Start investing with as little as fifty dollars. Working on my feet all day gave me pain here. In my knees. But now, i step on this machine and get my number which matches my dr. Scholls custom fit orthotic inserts. Now i get immediate relief from my foot pain. My knee pain. Find a machine at drscholls. Com fact. When you take advil you get relief right at the site of pain. Wherever it is. Advil stops pain right where it starts. Relief doesnt get any better than this. Advil. 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Get immediate help if you develop unusual or severe stomach pain especially with bloody or black stools the most common side effect is diarrhea, sometimes severe. If its severe stop taking linzess and call your doctor right away. Other side effects include gas stomacharea pain and swelling. Bottom line, ask your doctor about linzess today. The Hoover Floormate deluxe. Washes. Scrubs. Dries. Floormate deluxe. Starting at one thirty nine. To the index. Pope francis saying he feels his time as pope will be brief. Four or five years, maybe two or three. Adding the thing he misses the most being able to get a slice of pizza without being recognized. And this man, coming forward that hes lost his lottery ticket. Prize. Its too late to claim the prize. And alex trebek saying it wasnt one of the greatest days on jeopardy. And president obama on jimmy kimmel live. Is there me any way we could fly obama to a golf course around the world and just leave him there . A good sport. 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