>>> TONIGHT, THE >>> TONIGHT, THE UNFOLDING FLOODING DISASTER WITH MORE BAD WEATHER ON THE WAY. HUNDREDS STRANDED, THE URGENT RESCUES RIGHT NOW. VERMONT'S CAPITOL SUBMERGED. HOMES IN PIECES AND FLOATING AWAY, AND TRAIN TRACKS LEFT WITH NOTHING LEFT TO SUPPORT THEM. THE DAM ON THE VERGE OF FAILING. IS IT ABOUT TO GET WORSE BEFORE IT GETS BETTER? OUR TEAM LIVE IN THE FLOOD ZONE TONIGHT. >>> ALSO, 70 MILLION REMAIN UNDER HEAT ADVISORIES, FROM CALIFORNIA TO SOUTH FLORIDA. WE'LL SHOW YOU WHAT IT'S LIKE LIVING AND WORKING IN TRIPLE-DIGIT HEAT. SO HOW LONG WILL IT LAST? AL ROKER STANDING BY. >>> PLUS, THE SLOW-MOVING DISASTER NEAR LOS ANGELES. A LANDSLIDE TAKING A DOZEN HOMES AND THREATENING EVEN MORE. WHAT'S BEHIND IT. >>> OVERSEAS, UKRAINE'S PRESIDENT ZELENSKYY COMING FACE-TO-FACE WITH NATO LEADERS, DEMANDING HIS WAR-TORN COUNTRY BE ADMITTED TO THE ALLIANCE. THIS AS HE'S ABOUT TO MEET WITH PRESIDENT BIDEN. >>> GOLF UNDER FIRE. PGA TOUR OFFICIALS FACE INTENSE CRITICISM FROM CONGRESS OVER PLANS TO MERGE WITH THE SAUDI-BACKED GOLF TOUR. 9/11 FAMILIES AT THE HEARING. >>> THE GROWING MALARIA SCARE. MOSQUITOS CARRYING THE INFECTIOUS DISEASE, DETECTED IN THE U.S. FOR THE FIRST TIME IN 20 YEARS. THE EFFORT TO CONTROL THE MOSQUITOS THAT CARRY IT. >>> THE HOSTAGE STANDOFF AT CAESAR'S SENSATI? >> Announcer: THIS IS "NBC NIGHTLY NEWS" WITH LESTER HOLT. >> AND GOOD EVENING. I'M TOM LLAMAS, IN FOR LESTER TONIGHT. IT'S BEING CALLED HISTORIC AND CATASTROPHIC. THE FLOODING EMERGENCY THAT IS NOWHERE CLOSE TO BEING OVER TONIGHT. PARTS OF VERMONT REMAIN COVERED IN WATER AND MUD AFTER THE RIVER THAT RUNS THROUGH THE CAPITOL CRESTED AT MORE THAN 21 FEET. MORE THAN 100 RESCUES HAVE BEEN CARRIED OUT AFTER DOZENS OF LOCATIONS IN THE STATE RECEIVED 6 INCHES OF RAIN OR MORE SINCE SUNDAY. AND TONIGHT, ALL EYES ON A DAM THAT COULD OVERFLOW AND MAKE THINGS EVEN WORSE, WHILE IN THE SOUTH AND SOUTHWEST, IT'S THE OPPRESSIVE HEAT THAT REMAINS THE TOP CONCERN. WE'LL HEAR FROM AL ROKER IN A MOMENT ABOUT THAT HEAT DOME, BUT WE AGAIN WITH NBC'S KRISTEN DAHLGREN IN THE FLOOD ZONE TONIGHT IN VERMONT. >> Reporter: FROM THE AIR, THE SCOPE OF THE DISASTER IS UNMISTAKABLE. VERMONT'S CAPITAL CITY SUBMERGED. THE WINOOSKI RIVER UNSTOPPABLE AS IT SWELLED TO MORE THAN 21 FEET, ITS SECOND HIGHEST FLOOD LEVEL ON RECORD, OVERTOPPING ITS BANKS AND STRANDING HUNDREDS. >> MAKE NO MISTAKE, THE DEVASTATION AND FLOODING WE'RE EXPERIENCING ACROSS VERMONT IS HISTORIC AND CATASTROPHIC. >> Reporter: SWIFT WATER RESCUE TEAMS FROM SEVERAL STATES PERFORM MORE THAN 100 RESCUES. THESE PEOPLE PULLED FROM A DOWNTOWN HOTEL. WITH THE FIRST FLOOR UNDER WATER, THERE WAS NO OTHER WAY TO GET OUT. HOW QUICKLY DID THINGS GO BAD? >> YEAH, REALLY QUICKLY. YEAH, IT WENT FROM, YOU KNOW, WATER AT THE FRONT OF THE HOTEL UP TO OVER THE CARS. >> Reporter: THIS AFTERNOON, MAYOR JACK McCOLLOUGH GETTING HIS FIRST UP CLOSE LOOK AT THE DEVASTATION. >> PROBABLY WORST THAN I EXPECTED. YEAH, IT'S NOT GOOD. >> Reporter: THE CITY NOW UNDER A BOIL WATER ADVISORY, AND IT'S NOT OVER. OFFICIALS CLOSELY MONITORING A DAM ABOUT FIVE MILES UPSTREAM, DANGEROUSLY CLOSE TO OVERTOPPING AND SENDING EVEN MORE WATER INTO MONTPELIER. >> WHAT WE'RE TOLD IS WE'RE WITHIN ABOUT A FOOT OF THAT HAPPENING. SO THAT COULD BE VERY BAD IF THAT HAPPENS. >> Reporter: EVEN THE POLICE STATION IS FLOODED. THEY'VE HAD TO MOVE OPERATIONS ELSEWHERE. COMMUNICATIONS ALSO A BIG CONCERN. THESE GUYS ARE HEADED OUT NOW. THEY'RE GOING TO TAKE A GENERATOR UP TO THE TOP OF A BUILDING TO MAKE SURE THAT THEIR CALLS KEEP COMING IN. 14 COUNTIES IN VERMONT HAVE NOW BEEN DECLARED DISASTER AREAS. >> IT'S AWFUL. IT'S ATROCIOUS. >> Reporter: SO MANY HAVE HAD TO FLEE THEIR HOMES. >> IT WAS LIKE WE HAVE TO GO NOW. LIKE NOW, WE HAVE TO GO RIGHT NOW. AND SO WE GOT OUR KIDS, AND WE GRABBED OUR DOG, AND WE LEFT. >> Reporter: SOME TOWNS ARE STILL COMPLETELY CUT OFF. AIR RESCUES HAPPENING WHERE BOATS AND TRUCKS CAN'T GET IN. IN LUDLOW, YOU CAN SEE WHY. THE GROUND COMPLETELY WASHED AWAY BENEATH THIS TRAIN TRACK. ELSEWHERE, ENTIRE HOUSES SUCCUMB TO THE POWERFUL CURRENT, ROADS AND BRIDGES BUCKLED. WHAT IS LEFT WHEN THE WATER FINALLY RECEDES WILL BE A MASSIVE AND EXPENSIVE CLEANUP, SOMETHING THE HUDSON VALLEY KNOWS ALL TOO WELL. TODAY STILL PICKING UP THE PIECES FROM THE SAME SYSTEM. FOR SOME, MOVING ON WILL BE INFINITY ED NUGENT LOST HIS DAUGHTER PAMELA IN THE FLOODWATERS. >> SHE PANICKED AGAIN. SHE JUST GRABBED A DOG AND CAME OUT HERE. AS SOON AS SHE HIT THE ROAD, THE WATER TOOK HER DOWN. TWO SECONDS SHE WAS GONE. >> Reporter: EVEN AS THE FLOODWATERS BEGAN TO RECEDE, THE PAIN MAY TAKE MUCH LONGER. >> AND WITH THAT, KRISTEN DAHLGREN JOINS US NOW LIVE. KRISTEN, FROM WHAT IT LOOKS LIKE BEHIND YOU, THERE ARE MULTIPLE THREATS THERE TONIGHT. >> YEAH, THERE ARE, TOM. THEY ARE STILL WATCHING THAT DAM VERY CLOSELY. THE LATEST UPDATE IS THAT IT IS HOLDING STEADY BUT AT CAPACITY. SO NOT A LOT OF WIGGLE ROOM. MEANTIME, THERE IS MORE RAIN IN THE FORECAST. THE GROUND HERE IS SATURATED. AS YOU SEE, THE RIVERS ARE FULL. THERE ARE NOT A LOT OF PLACES WHERE ANY MORE WATER COULD GO, TOM. >> YEAH, THAT RAIN WOULD BE DEVASTATING. ALL RIGHT, KRISTEN DAHLGREN, LEADING US OFF TONIGHT. >>> NOW TO THE OTHER SERIOUS WEATHER THREAT SO MANY ARE FACING, THAT DANGEROUS HEATWAVE THAT HAS SENT TEMPERATURES INTO THE TRIPLE-DIGITS FOR WEEKS. 70 MILLION UNDER HEAT ALERTS TONIGHT, IN PART BECAUSE OF THAT HEAT DOME THAT JUST WON'T GO AWAY. KATHY PARK HAS THAT STORY. >> Reporter: TONIGHT, THE BRUTAL HEAT BUILDING ACROSS THE COUNTRY, TURNING TYPICAL HOT SPOTS EVEN HOTTER. VEGAS BAKING AT 117. PHOENIX A SWELTERING 109. AND DEATH VALLEY COULD HIT 130 DEGREES BY THIS WEEKEND. >> SO THIS PATTERN HAS BEEN A LITTLE BIT STUCK. >> Reporter: MEANWHILE, MIAMI REACHING ITS 30th CONSECUTIVE DAY WITH A HEAT INDEX IN THE TRIPLE-DIGITS. >> THE HUMIDITY IS WHAT KILLS YOU. >> Reporter: FOR ROOFERS HERE, THERE IS NO ESCAPING THE ELEMENTS. >> I USUALLY WET MY WRISTS, MY NECK BECAUSE THOSE ARE THE COOLDOWN AREAS FOR ME. THAT WORKS FOR ME. >> Reporter: THE MIAMI-DADE COUNTY MAYOR TELLING US THE CHIEF HEAT OFFICER IS ZEROING IN ON THESE EXTREME CONDITIONS. >> THEY'RE REALLY UNDERSTANDING THAT THIS IS SERIOUS, THAT IT'S HERE TO STAY, AND THAT WE ALL HAVE TO ADAPT AND PROTECT. >> Reporter: AND IT'S NOT JUST SOARING TEMPERATURES. FLORIDA IS LITERALLY IN HOT WATER. THANKS TO A MARINE HEATWAVE, WATER TEMPERATURES IN SOME SPOTS OFF THE COAST ARE IN THE MID- TO UPPER 90s. THAT'S 5 TO 10 DEGREES ABOVE AVERAGE. AND FUELING ALL THIS IS A STAGNANT AND STIFLING WEATHER PATTERN. LATER THIS WEEK, THE SUNSHINE STATE WILL BE BAKING UNDER A SAHARAN DUST CLOUD BLOWING IN FROM AFRICA. >> IT'S ABOUT A MILE ABOVE OUR HEADS WHEN IT COMES, BUT IT REALLY STIFLES THE THUNDERSTORMS WHEN THOSE ARRIVE. AND IT MAKES FOR SOME VERY HOT DAYS IN PLACES LIKE SOUTH FLORIDA. >> Reporter: JUST THREE WEEKS INTO SUMMER, AND ALREADY SMASHING MULTIPLE HEAT RECORDS ACROSS THE GLOBE. KATHY PARK, NBC NEWS, MIAMI. >> AL ROKER JOINS US LIVE NOW IN STUDIO. AL, I KNOW YOU'RE TRACKING IT ALL. IT IS THE SUMMER OF THE HEAT DOME IT APPEARS. >> THAT'S RIGHT. AND THIS IS NOT GOING ANYWHERE, AS KATHY ALLUDED. FROM MIAMI ALL THE WAY TO SACRAMENTO, 70 MILLION PEOPLE UNDER THIS HEAT DOME. JET STREAM TO THE NORTH. TRIPLE-DIGITS INTO FRIDAY FOR VEGAS, ALBUQUERQUE, DALLAS, SAN ANTONIO, CLOSE TO THAT IN ST. LOUIS AND MEMPHIS. WE SLIDE TO THE SOUTH, AND LOOK AT THESE HEAT INDEXES. TRIPLE-DIGITS FOR MIAMI, ALSO JACKSONVILLE, PENSACOLA AND NEW ORLEANS. AND WE'VE GOT SEVERE WEATHER TOMORROW, STARTING WITH TONIGHT FROM MILE CITY ALL THE WAY TO DES MOINES FOR ISOLATED TORNADOES POSSIBLE. TOMORROW SOUTH OF CHICAGO DOWN TO SPRINGFIELD, INDIANAPOLIS 18 MILLION PEOPLE AT RISK. AND THIS RAIN, THAT HEAVY RAIN AGAIN UP INTO PARTS OF NEW ENGLAND MAY CAUSE SOME FLOODING AND LOCALLY 3 TO 4 INCHES, TOM, THROUGH THE MISSISSIPPI RIVER VALLEY. >> ALL RIGHT, AL, WE APPRECIATE ALL OF THAT. THANK YOU. >>> WE WANT TO MOVE NOW TO SOUTHERN CALIFORNIA WHERE A LANDSLIDE HAS BROUGHT DISASTER TO ONE COMMUNITY, KNOCKING OUT MORE THAN A DOZEN HOMES AND MORE STILL SLIDING TONIGHT. STEVE PATTERSON WITH THE HOMES ON THE VERGE OF COLLAPSE. >> Reporter: TONIGHT, A COMMUNITY ON EDGE BENEATH THE SHATTERED ROOFS AND CRACKED WALLS, WITH MORE THAN A DOZEN HOMES STILL ON THE MOVE. >> YOU CAN ACTUALLY HEAR THE SNAP, CRACKLE AND POP EVERY MINUTE WHEN YOU'RE THERE. >> Reporter: TODAY, THE L.A. COUNTY FIRE DEPARTMENT RED-TAGGING 12 HOMES AS UNSAFE, WITH TEN ACTIVELY MOVING AND ANOTHER 16 UNDER CONSTANT WATCH. ARE YOU WORRIED ABOUT YOUR HOUSE? >> OH, YES, OF COURSE. >> Reporter: RESIDENTS IN ROLLING HILLS ESTATES 25 MILES SOUTH OF LOS ANGELES STARTED NOTICING CRACKS IN THEIR HOMES AND ON THE GROUND SATURDAY. OFFICIALS SAY THE GROUND GAVE WAY TO A LANDSLIDE, TAKING 12 HOMES WITH IT. WEBBER YEN HAD JUST 10 MINUTES TO GRAB WHAT HE COULD AND EVACUATE HIS HOME. IS THERE ANY PART OF YOUR HOME THAT IS LEFT STANDING? >> NO. >> Reporter: IT'S STILL SLIDING DOWN? >> IT'S 10 FOOT A DAY. >> Reporter: THE CAUSE IS UNDER INVESTIGATION, PENDING A GEOLOGY REPORT. >> WE DON'T KNOW HOW LONG THAT THESE HOMES ARE GOING TO CONTINUE TO MOVE. >> Reporter: BUT OFFICIALS SAY A FISSURE WAS FOUND ALONG THE DESTROYED HOMES, RAISING SUSPICIONS ABOUT OVERSATURATION AFTER CALIFORNIA'S RECORD-BREAKING WINTER RAINFALL. >> IT'S MOVING QUICKLY. THERE IS NOTHING TO DO TO STOP IT, AND IT'S THE MOST SHOCKING, SURREAL THING I HAVE EVER SEEN. >> Reporter: TONIGHT, WITH PARTS OF HOMES STILL TUMBLING INTO THE RAVINE BEHIND THEM, RESIDENTS URGING FOR ACCOUNTABILITY. >> I'M ANGRY PEOPLE HAVE DROPPED THE BALL, BECAUSE THERE WAS AN INDICATION IN APRIL THAT SOMETHING MIGHT HAVE HAPPENED, AND NO ONE ALERTED US. >> Reporter: AND TOM, THE HOPE HERE IS THAT SEVERE LAND MOVEMENT IS ISOLATED TO THE HOMES THAT YOU SEE OVER MY SHOULDER. BUT WE WON'T KNOW THAT UNTIL A GEOLOGICAL SURVEY IS DONE IN THIS AREA. OFFICIALS SAY THAT WILL HAPPEN SOON, BUT THE EXTENT OF THIS UNKNOWN UNTIL OFFICIALS GET HERE. TOM? >> ALL RIGHT, STEVE, THANK YOU FOR THAT. >>> WE WANT TO HEAD OVERSEAS NOW TO THAT HIGH-STAKES NATO SUMMIT AND A MAJOR STALEMATE FROM THE ALLIANCE ABOUT WHETHER UKRAINE WILL BE ALLOWED TO JOIN, ALL AFTER STINGING CRITICISM OF NATO FROM UKRAINE'S PRESIDENT. PETER ALEXANDER IS THERE LIVE IN LITHUANIA FOR US TONIGHT, AND PETER, NATO DID NOT GO NEARLY AS FAR AS UKRAINE WANTED TODAY? >> YEAH, TOM, THAT'S RIGHT. THE JOINT STATEMENT FROM THE LEADERS HERE, INCLUDING THE U.S. SAYS THAT UKRAINE WILL BE INVITED TO JOIN NATO, QUOTE, WHEN ALLIES AGREE AND CONDITIONS ARE MET. AMONG THOSE CONDITIONS, MORE DEMOCRATIC REFORMS. BUT TO BE CLEAR, THAT IS NOT AT ALL WHAT UKRAINIAN PRESIDENT ZELENSKYY HAS BEEN DEMANDING, AND IT REVEALS LINGERING DIVISIONS WITHIN NATO, WITH THE U.S. AND GERMANY AMONG THOSE BLOCKING UKRAINE FROM JOINING THE ALLIANCE NOW, WHERE ALL NATO MEMBERS NEED TO BE IN AGREEMENT. EARLIER TODAY ZELENSKYY MADE HIS FRUSTRATIONS CLEAR, CALLING NATO'S POSITION ABSURD. HE IS GOING TO BE FACE-TO-FACE WITH PRESIDENT BIDEN HERE TOMORROW. STILL, THE WHITE HOUSE, TOM, IS ALREADY TOUTING THIS SUMMIT AS A SUCCESS, WITH TURKEY'S PRESIDENT DROPPING HIS OPPOSITION TO SWEDEN'S BID TO JOIN NATO. ANOTHER EXAMPLE PRESIDENT BIDEN'S ADVISERS SAY THAT RUSSIA'S INVASION OF UKRAINE HAS BACKFIRED. TOM? >> ALL RIGHT, PETER ALEXANDER WITH A LOT OF NEW REPORTING FOR US. PETER, WE APPRECIATE IT. >>> BACK HERE AT HOME, TO WASHINGTON. EXECUTIVES OF THE PGA TOUR WERE GRILLED TODAY AT A U.S. SENATE HEARING. THEY DEFENDED THEIR CONTROVERSIAL PLAN TO MERGE WITH SAUDI ARABIA'S LIV GOLF. HERE IS RYAN NOBLES. >> Reporter: TONIGHT, THE PGA TOUR UNDER PRESSURE. >> TODAY'S HEARING IS ABOUT MUCH MORE THAN THE GAME OF GOLF. IT'S ABOUT HOW A BRUTAL, REPRESSIVE REGIME CAN BUY INFLUENCE. >> Reporter: THE TOUR HOPES TO CUT A DEAL WITH THE SAUDI PUBLIC INVESTMENT FUND, WHICH RUNS THE LIV GOLF TOUR. LIV GOLF WAS POACHING SOME OF THE PGA'S BIGGEST STARS LIKE PHIL MICKELSON AND BROOKS KOEPKA. THE PGA INITIALLY FOUGHT BACK TO WHAT AMOUNTED TO A HOSTILE TAKEOVER, BUT ULTIMATELY CAME TO THE TABLE BECAUSE THEY HAD NO CHOICE. >> MONEY. RIVERS OF MONEY, AN IRRATIONAL MARKET FORCE. >> Reporter: THAT MONEY IS WHAT HAS MEMBERS OF CONGRESS CONCERNED. >> WHAT ARE THE AMOUNTS THAT HAVE BEEN DISCUSSED? >> NORTH OF ONE BILLION. >> Reporter: THE SAUDI GOVERNMENT HAS A HISTORY OF HUMAN RIGHTS ABUSES, INCLUDING THEIR REACTION TO THE DEATH OF JAMAL KHASHOGGI AND BRAD EAGLESONS, WHOSE FATHER DIED IN 9/11 BELIEVES THERE IS NOT ENOUGH MONEY IN THE WORLD TO IGNORE THOSE ATTACKS. JIMMY DUNN, A TOUR BOARD MEMBER WHO HELPED OPEN THE DOOR TO THE DEAL LED A COMPANY THAT LOST 66 WORKERS ON THAT DAY. >> IF ANY PERSON HAD THE REMOTEST CONNECTION TO AN ATTACK ON OUR COUNTRY AND THE MURDER OF MY FRIENDS, I AM THE LAST GUY THAT WOULD BE SITTING AT A TABLE WITH THEM. >> Reporter: BUT EAGLESON, WHO HANDED DUNN AN FBI REPORT OUTLINING THE SAUDI CONNECTIONS TO THE 9/11 TERRORISTS DOESN'T AGREE.NEEDS TO REALIZE WHO IN FACT HE IS ACTUALLY GETTING INTO BUSINESS WITH. >> Reporter: AND THIS PARTNERSHIP IS FAR FROM A DONE DEAL. THE TWO SIDES HAVE UNTIL THE END OF THE YEAR TO COME TO AN AGREEMENT. TOM? >> ALL RIGHT, RYAN, THANK YOU FOR THAT. >>> IN 60 SECONDS, A FORMER MEMBER OF THE MANSON CULT FREED AFTER SERVING MORE THAN 50 YEARS FOR MURDER. >>> AND A PROMINENT COLLEGE FOOTBALL COACH FIRED OVER ALLEGATIONS OF HAZING IN HIS >>> AND THIS JUST IN TONIGHT. CHARLES MANSON FOLLOWER LESLIE VAN HOUTEN IS BEING PAROLED FROM A CALIFORNIA PRISON AFTER 53 YEARS. NOW 73 YEARS OLD, SHE WAS CONVICTED OF THE 1969 MURDERS OF LENO AND ROSEMARY LABIANCA. A STATE COURT BLOCKED GOVERNOR GAVIN NEWSOM'S LATEST ATTEMPT TO STOP HER RELEASE. >>> TONIGHT A PROMINENT COLLEGE FOOTBALL COACH IS OUT OF A JOB, FIRED IN A GROWING HAZING SCANDAL. MAGGIE VESPA HAS THIS ONE. >> Reporter: TONIGHT THE CULMINATION OF A MONTHS' LONG HAZING SCANDAL HAS NORTHWESTERN UNIVERSITY PARTING WAYS WITH ITS WINNINGEST COACH EVER. >> WIN ON THREE, ONE, TWO, THREE! >> WIN! >> Reporter: AFTER 17 SEASONS HEAD COACH AND FORMER NORTHWESTERN LINEBACKER PAT FITZGERALD WAS FIRED ON MONDAY. THE UNIVERSITY'S PRESIDENT WRITING THE HEAD COACH IS ULTIMATELY RESPONSIBLE FOR THE CULTURE OF HIS TEAM. THE FIRING FOLLOWS A SIX-MONTH INDEPENDENT INVESTIGATION INTO ALLEGATIONS OF HAZING, WHICH FOUND EVIDENCE IT HAPPENED, BUT NO EVIDENCE THE SCHOOL SAYS COACHES KNEW. STILL, THE UNIVERSITY INITIALLY SUSPENDED FITZGERALD FOR TWO WEEKS, BUT OVER THE WEEKEND, RECONSIDERED. NORTHWESTERN STUDENT NEWSPAPER PUBLISHED ALLEGATIONS FROM FORMER PLAYERS WHO CLAIMED THEY ENDURED COERCED SEXUAL ACTS, ONE DUBBED THE CAR WASH, FORCING THEM TO SPIN NAKED IN THE SHOWERS AS TEAMMATES ENTERED AND BASICALLY RUB UP AGAINST A BARE NAKED MAN. FORMER OFFENSIVE LINEMAN AND SON OF MEXICAN IMMIGRANTS RAMON DIAZ JR. WHO PLAYED UNDER FITZGERALD UNTIL 2009 ALSO REMEMBERS RACIST HAZING. >> THEY JUST SAID WE NEED TO SHAVE YOUR HEAD. CINCO DE MAYO WAS SHAVED ON MY HEAD. >> Reporter: DIAZ ALONG WITH OTHER PLAYERS QUOTED BY THE STUDENT NEWSPAPER BELIEVE COACHES KNEW ABOUT HAZING. >> IT JUST FELT THIS IS WHAT YOU HAVE TO DO TO PLAY FOOTBALL. >> Reporter: FITZGERALD MAINTAINING HE HAD NO KNOWLEDGE WHATSOEVER OF ANY FORM OF HAZING, SEEN HERE DENOUNCING HAZING IN 2014. >> THERE IS ZERO TOLERANCE FOR HAZING THERE NO REASON TO EVER HAVE IT. >> Reporter: TONIGHT SHOCKWAVES ON CAMPUS SHARED BY THE STUDENT REPORTERS WHO BROUGHT PLAYERS' ALLEGATIONS TO LIGHT. >> OUR HOPE IS SPREADING THE TRUTH. >> IT'S NO LONGER SOMETHING THAT CAN BE SWEPT UNDER A RUG AND KEPT SECRET. >> Reporter: NORTHWESTERN HAS YET TO NAME A NEW COACH, AND THE TEAM'S SEASON STARTS IN LESS THAN TWO MONTHS. TOM? >> OKAY, MAGGIE, THANK YOU FOR THAT. >>> AND WE'RE BACK IN A MOMENT WITH THE LATEST ON A HOSTAGE DRAMA AT CAESARS PALACE IN LAS VEGAS. >>> AND INSIDE THE HIGH-TECH FIGHT TO STOP THE SPREA >>> BACK NOW WITH A DRAMATIC SCENE OUT OF LAS VEGAS WHEN A MAN BARRICADED HIMSELF INSIDE OF A CAESARS PALACE HOTEL ROOM, BREAKING THE GLASS WINDOWS, AS YOU CAN SEE HERE, THROWING FURNITURE FROM STORIES ABOVE. POLICE SAY THE SUSPECT GRABBED A WOMAN IN THE HALLWAY OF THE HOTEL AND LOCKED HER IN HIS ROOM. A SHORT TIME AGO, THE S.W.A.T. TEAM ENTERED THE ROOM AND ARRESTED THE MAN. THEY SAY THAT WOMAN IS SAFE TONIGHT. >>> ALSO TONIGHT, FOR THE FIRST TIME IN 20 YEARS, MOSQUITOS ARE TRANSMITTING MALARIA RIGHT HERE IN THE U.S. AND IN RECENT WEEKS, A TOTAL OF SEVEN PEOPLE HAVE NOW BEEN INFECTED IN FLORIDA AND TEXAS. TONIGHT PRISCILLA THOMPSON ON WHY IT'S HAPPENING, AND THE RUSH TO STOP THE SPREAD. >> Reporter: IN CALIFORNIA, THIS DRONE IS ON THE DEFENSIVE. IN FLORIDA, TRUCKS ARE ON THE HUNT, ALL OF IT IN A BATTLE WITH THE TINIEST BUT MOST SERIOUS OF THREATS, MOSQUITOS, WHICH FOR THE FIRST TIME IN 20 YEARS ARE RESPONSIBLE FOR LOCALLY TRANSMITTED MALARIA SPREADING IN PARTS OF THE U.S. SIX CASES IN FLORIDA AND ONE IN TEXAS NEAR THE MEXICO BORDER. WHAT WENT THROUGH YOUR MIND WHEN YOU HEARD THAT? >> IT IS UNPRECEDENTED. >> Reporter: MAX VIGILANT IS THE DIRECTOR OF THE MOSQUITO CONTROL DIVISION IN HARRIS COUNTY, TEXAS, PREPARING FOR WHAT MAY COME HIS WAY. >> THIS TRAP HAS COLLECTED FOR US ON AVERAGE 35 DIFFERENT SPECIES OF MOSQUITOS. >> Reporter: HE IS RESPONSIBLE FOR COLLECTING AND TESTING THOUSANDS OF MOSQUITO SAMPLES ACROSS HOUSTON. IS CLIMATE CHANGE PLAYING A ROLE HERE? >> IT IS A MAJOR FACTOR. WE HAVE THE WATER. WE HAVE THE TEMPERATURE, WE HAVE THE HUMIDITY. WE'RE LOOKING AT MOVEMENT OF MOSQUITOS FROM AREAS THAT NORMALLY WOULD NOT SEE SO MANY MOSQUITOS. >> Reporter: IN SARASOTA COUNTY, FLORIDA, DR. MANUEL GORDILLO TREATED FOUR PATIENTS WITH MALARIA. >> IT CAN BE DIFFICULT TO DIAGNOSIS. >> Reporter: HE SAYS THE INCUBATION PERIOD FOR MALARIA COULD BE ANYWHERE FROM A WEEK TO SEVERAL MONTHS. >> THERE MAY BE PEOPLE THAT ARE INFECTED NOW WITH LOW-GRADE SYMPTOMS OR NO SYMPTOMS THAT WILL MANIFEST THE DISEASE AT A LATER POINT. >> Reporter: COUNTY OFFICIALS ARE WARNING PEOPLE NOT TO GO OUTSIDE AT NIGHT WHEN MOSQUITOS ARE MOST ACTIVE AND TO WEAR REPELLENT. EXPERTS SAY ONLY BUY EPA APPROVED MOSQUITO REPELLENT. READ THE LABEL FOR HOW OFTEN TO A REAPPLY, AND BE SURE TO PUT IT ON BOTH EXPOSED SKIN AND YOUR CLOTHES. IMPORTANT PRECAUTIONS AS THE RISK FOR MOSQUITO SEASON WILL >> CHRISTOPHER EUBANKS. WE NOW KNOW THE NAME, AND WE WILL BE ROOTING YOU ON.