>>> TONIGHT, BREAKING NEWS. A MASSIVE SETTLEMENT IN THE DEFAMATION LAWSUIT AGAINST FOX NEWS. THE STUNNING LAST-MINUTE AGREEMENT BETWEEN LAWYERS FOR FOX AND DOMINION VOTING SYSTEMS AFTER A JURY WAS SEATED AT OPENING STATEMENTS SET TO BEGIN. FOX AGREEING TO PAY DOMINION OVER $787 MILLION, AVOIDING ONE OF THE BIGGEST MEDIA TRIALS IN DECADES. WHAT THE TWO SIDES ARE SAYING TONIGHT. >>> JUST BREAKING, A PARKING GARAGE COLLAPSING IN DOWNTOWN MANHATTAN. ONE PERSON IS DEAD AND FIVE INJURED. INSIDE THE URGENT RESCUE OPERATION UNDER WAY. >>> ALSO TONIGHT, THE KANSAS CITY HOMEOWNER CHARGED WITH SHOOTING A BLACK TEEN WHO MISTAKENLY RANG HIS DOORBELL SURRENDERS AND POSTS BAIL. THE 84-YEAR-OLD SUSPECT TELLING POLICE HE THOUGHT SOMEONE WAS TRYING TO BREAK INTO HIS HOUSE. THE 16-YEAR-OLD'S CLASSMATES RALLYING AROUND HIM. >>> AND ANOTHER SHOOTING AT THE WRONG ADDRESS. A MAN WHO OPENED FIRE ON A CAR THAT ACCIDENTLY DROVE INTO HIS DRIVEWAY, CHARGED WITH MURDER AFTER KILLING A 20-YEAR-OLD WOMAN. >>> THE AMERICAN REPORTER APPEARING IN A RUSSIAN COURTROOM ACCUSED OF SPYING, CHARGES THE U.S. IS BLASTING AS BASELESS. >>> AND THE SURPRISE ANNOUNCEMENT. BUFFALO BILLS SAFETY DAMAR HAMLIN CLEARED TO PLAY AGAIN AFTER NEARLY DYING ON THE FIELD. >> THIS IS "NBC NIGHTLY NEWS" WITH LESTER HOLT. >> GOOD EVENING AND WELCOME. A DRAMATIC ENDING LATE TODAY TO THE EXPLOSIVE LAWSUIT BETWEEN FOX NEWS AND DOMINION VOTING SYSTEMS, WITH THE TWO SIDES REACHING A SETTLEMENT JUST HOURS AFTER THE JURY WAS SWORN IN. FOX AGREEING TO PAY DOMINION MORE THAN $787 MILLION OVER THE NETWORK'S UNSUPPORTED CLAIMS THAT THE 2020 PRESIDENTIAL ELECTION WAS RIGGED. DOMINION'S CEO PROCLAIMING FOX HAS ADMITTED TO TELLING LIES ABOUT DOMINION. FOX SIMPLY ACKNOWLEDGING RULINGS THAT DETERMINE CERTAIN CLAIMS ABOUT DOMINION TO BE FALSE. THE CASE CENTERED ON FOX'S BASELESS REPORTING THAT DOMINION VOTING MACHINES FLIPPED VOTES AND SKEWED 2020 ELECTION RESULTS. DESPITE PRIVATELY ACKNOWLEDGING THOSE CLAIMS WERE FALSE. TODAY'S SETTLEMENT LESS THAN THE $1.6 BILLION DOMINION WAS SEEKING. OUR STEPHANIE GOSK IS AT THE COURTHOUSE IN DELAWARE. STEPH, WHAT WAS IT LIKE IN THE COURTROOM WHEN THE JUDGE ANNOUNCED THE SETTLEMENT? >> YOU KNOW, LESTER, WE CAME BACK FROM A LUNCH BREAK, EXPECTING OPENING STATEMENTS, BUT THE JURY NEVER CAME IN. IN THE DELAY STRETCHED INTO HOURS, AND THEN THE JUDGE CAME IN. AND WITH VERY LITTLE CEREMONY SAID AN AGREEMENT HAD BEEN REACHED, AND JUST LIKE THAT, THE TRIAL THAT WAS SUPPOSED TO LAST FIVE TO SIX WEEKS WAS OVER. "THE PARTIES HAVE RESOLVED THEIR CASE." WITH THOSE WORDS, THE LANDMARK TRIAL BETWEEN DOMINION AND FOX NEWS WAS OVER BEFORE IT BEGAN. THE 12-PERSON JURY SEATED JUST THIS MORNING WAS THANKED FOR ITS SERVICE. FOX AND DOMINION LEGAL TEAMS THANKED THE COURT, AND EVERYONE WALKED OUT. >> LIES HAVE CONSEQUENCES. >> Reporter: ATTORNEYS FOR DOMINION THEN SPOKE TO A SEA OF REPORTERS OUTSIDE. >> TODAY REPRESENTS A RINGING ENDORSEMENT FOR TRUTH AND FOR DEMOCRACY. >> Reporter: AS PART OF THE SETTLEMENT, FOX AGREED TO PAY DOMINION $787.5 MILLION, JUST LESS THAN HALF OF THE $1.6 BILLION THEY WERE SUING FOR. >> FOX HAS ADMITTED TO TELLING LIES ABOUT DOMINION THAT CAUSED ENORMOUS DAMAGE TO MY COMPANY, OUR EMPLOYEES, AND THE CUSTOMERS THAT WE SERVE. NOTHING CAN EVER MAKE UP FOR THAT. >> Reporter: DOMINION VOTING SYSTEMS ACCUSED THE NETWORK OF DEFAMATION AND PROMOTING CONSPIRACY THEORIES ABOUT THE 2020 PRESIDENTIAL ELECTION. PRESIDENT TRUMP'S LAWYERS WERE REPEATED GUESTS ON FOX, FALSELY CLAIMING DOMINION USED ITS VOTING MACHINES TO RIG THE OUTCOME. >> THE MACHINE RAN AN ALGORITHM THAT SHAVED VOTES FROM TRUMP AND AWARDED THEM TO BIDEN. >> AT THE CENTER OF IT ALL, DOMINION VOTING SYSTEMS. ARE THEY THE CULPRIT HERE? >> Reporter: FOX NEWS RELEASING A STATEMENT ACKNOWLEDGING THE COURT'S RULINGS THAT CERTAIN CLAIMS ABOUT DOMINION WERE FALSE. ADDING IT'S HOPEFUL THE DECISION TO RESOLVE THIS DISPUTE WITH DOMINION AMICABLY INSTEAD OF A DIVISIVE TRIAL ALLOWS THE COUNTRY TO MOVE FORWARD. TODAY REACTION ON THE NETWORK. >> THE RISK FOR BOTH SIDES HERE. FOX OBVIOUSLY DID NOT WANT TO LOSE THIS CASE. DOMINION WOULD HAVE HAD TO PROVE ACTUAL MALICE. THAT'S A HIGH BAR IN ANY SUCH CASE. >> Reporter: BUT LEGAL TROUBLES AREN'T OVER FOR FOX NEWS. IT STILL FACES ANOTHER DEFAMATION LAWSUIT FROM VOTING TECHNOLOGY COMPANY SMARTMATIC, WITH SIMILAR ALLEGATIONS, SUING FOR $2.7 BILLION. FOX HAS DENIED THE ALLEGATIONS AND CALLED THE ALLEGED DAMAGES OUTRAGEOUS. >> AND STEPHANIE, WE JUST HEARD A REFERENCE TO THIS TERM "ACTUAL MALICE." DID FOX ADMIT SUCH A THING IN WHAT THE CASE WAS ABOUT? NO, LESTER, THEY DIDN'T. THEY ACKNOWLEDGED THE COURT RULING THAT CERTAIN FALSEHOODS ENDED UP ON THEIR BROADCAST, BUT DID NOT ADMIT TO SPREADING THEM KNOWINGLY OR WITH A RECKLESS DISREGARD FOR THE TRUTH. THAT WAS WHAT DOMINION WAS GOING TO HAVE TO PROVE IN COURT. LESTER? >> STEPHANIE GOSK, THANK YOU. >>> IN NEW YORK, A DEADLY BUILDING LAPS COLLAPSE IN LOWER MANHATTAN. IT HAPPENED RIGHT AROUND RUSH HOUR AT A PARKING GARAGE. REHEMA ELLIS IS THERE. REHEMA, THE MAYOR SAID ONE PERSON IS DEAD. IS ANYONE POTENTIALLY TRAPPED IN THE RUBBLE? >> LESTER, THEY HOPE NOT, BUT THE SEARCH IS CONTINUING. AS YOU POINT OUT, ONE DEAD, FOUR WERE INJURED, ONE REFUSED TREATMENT. WE SHOULD TELL YOU AUTHORITIES SAY THEY WERE ALL GARAGE EMPLOYEES OF THIS FOUR-STORY GARAGE. WE WERE TOLD THAT THERE WERE FIREFIGHTERS INSIDE SEARCHING FOR PEOPLE, BUT AUTHORITIES DEEMED IT TOO RISKY, THE BUILDING TOO UNSTABLE. SO THEY SENT IN MECHANICAL EYES INSTEAD. A DRONE AND ROBOTIC DOG HAVE BEEN INSIDE SEARCHING IN THIS BUILDING. WE'RE TOLD ONE PERSON WAS RESCUED FROM THE TOP FLOOR. WE DON'T KNOW IF THAT'S ONE OF THE PEOPLE WHO WENT TO THE HOSPITAL. BUT AGAIN, THEY HOPE THEY'VE AGAIN EVERYONE OUT ALIVE. THEY'VE GOTTEN EVERYONE OUT NOW. THE SEARCH IS CONTINUING, ONE DEAD, FOUR OF WORKERS HAVE BEEN INJURED. THEY WERE TAKEN TO THE HOSPITAL. AND ONE OTHER REFUSED TREATMENT. BUT IT'S GOING TO BE A LONG NIGHT HERE AS THE SEARCH CONTINUES. LESTER? >> REHEMA ELLIS FOR US TONIGHT IN NEW YORK, THANK YOU. >>> THERE IS DEVELOPING NEWS OUT OF KANSAS CITY, MISSOURI, WHERE THAT HOMEOWNER WHO SHOT A BLACK TEENAGER AT HIS DOOR POSTED $200,000 BAIL HOURS AFTER TURNING HIMSELF IN TODAY. MAGGIE VESPA IS THERE WITH LATE DETAILS. >> Reporter: TONIGHT, POLICE SAY THE WHITE HOMEOWNER ACCUSED OF SHOOTING A BLACK MISSOURI TEEN WHO RANG HIS DOORBELL NOW OUT ON BAIL AFTER TURNING HIMSELF IN TO POLICE. >> WE ARE SATISFIED WITH THE CHARGES THAT ARE BROUGHT AS CHARGES. OBVIOUSLY, WE WANT TO SEE IT THROUGH TO A CONVICTION AND APPROPRIATE SENTENCING. >> Reporter: 84-YEAR-OLD ANDREW LESTER FACES THE POSSIBILITY OF LIFE IN PRISON, CHARGED WITH FIRST DEGREE ASSAULT AND ARMED CRIMINAL ACTION FOR SHOOTING 16-YEAR-OLD RALPH YARL IN THE HEAD AND ARM AFTER YARL, HOPING TO PICK UP HIS YOUNGER BROTHER THURSDAY ACCIDENTALLY WENT TO THE WRONG HOME. >> RALPH SAYS THAT HE WAS SHOT THROUGH THE SCREEN DOOR AT POINT-BLANK RANGE, AND WHEN HE WENT TO THE GROUND, HE WAS SHOT A SECOND TIME. >> Reporter: MEANWHILE, NEW DETAILS ON THE HOMEOWNER'S POSSIBLE DEFENSE. PER A PROBABLE CAUSE STATEMENT, ANDREW LESTER TELLING DETECTIVES HE WAS IN BED THURSDAY NIGHT WHEN HE HEARD HIS DOORBELL RING. ADDING HE PICKED UP HIS GUN AND SAW BLACK MALE, APPROXIMATELY 6 FEET TALL PULLING ON HIS EXTERIOR STORM HANDLE DOOR. LESTER NOTING HE BELIEVED SOMEONE WAS ATTEMPTING TO BRECK IN AND SHOT TWICE. ADDING HE WAS SCARED TO DEATH, AND THE TWO EXCHANGED NO WORDS. NBC NEWS HAS MADE MULTIPLE ATTEMPTS TO REACH OUT TO LESTER, BUT SO FAR HAS BEEN UNSUCCESSFUL. RALPH'S FAMILY SAYS HE ONLY RANG THE DOORBELL AND NEVER TRIED TO BREAK IN. THE FAMILY'S ATTORNEY SAYS ANDREW LESTER TOLD RALPH DON'T COME AROUND HERE BEFORE SHOOTING HIM. THE FAMILY SAYS RALPH, WOUNDED, RAN FOR HIS LIFE. >> WE LOVE YOU, RALPH! >> Reporter: PEOPLE, MORE THAN 1500 OF HIS HIGH SCHOOL CLASSMATES RALLYING AROUND RALPH TODAY, WEARING BLUE AND WILLING HIS RECOVERY ALONG. >> WE SUPPORT YOU, RALPH. WE WANT TO BE THERE FOR YOU. WE WANT TO LET YOU KNOW THAT WE STAND WITH YOU. >> MAGGIE VESPA JOINED ME NOW. MAGGIE, WHAT DO WE KNOW ABOUT RALPH'S CONDITION, HIS RECOVERY, AND THE NEXT STEPS IN THIS CASE? >> YEAH, LESTER, THE NEXT STEP IS BASICALLY THIS HOMEOWNER'S ARRAIGNMENT. IT'S SCHEDULED FOR TOMORROW AT 1:30 LOCAL TIME. MANY THE MEANTIME, RALPH YARL IS RECOVERING AT HOME FROM HIS INJURIES. HE IS SUFFERING FROM A CRACKED SKULL AND A TRAUMATIC BRAIN INJURY. WE'RE TOLD HIS SPEECH IS IMPAIRED, AND HIS FAMILY IS HOPEFUL FOR A FULL RECOVERY, BUT THEY ADD NOTHING IS CERTAIN. LESTER? >> MAGGIE, THANK YOU. >>> AS THAT CASE PLAYS OUT, THERE IS SHOCK IN UPSTATE NEW YORK. POLICE SAY A MAN SHOT AND KILLED A 20-YEAR-OLD WOMAN WHO WAS IN CAR THAT ACCIDENTALLY PULLED INTO HIS DRIVEWAY. TONIGHT HE IS CHARGED WITH MURDER. MIGUEL ALMAGUER NOW WITH THAT STORY. >> Reporter: LOST IN RURAL UPSTATE NEW YORK, 20-YEAR-OLD KAYLIN GILLIS WAS SHOT AND KILLED SATURDAY NIGHT WHEN THE SUV SHE WAS IN ACCIDENTALLY PULLED INTO THE WRONG DRIVEWAY. IT HAPPENED IN REMOTE WASHINGTON COUNTY WHEN THE SHERIFF SAYS GILLIS AND HER FRIEND, WHO WERE IN TWO VEHICLES AND A MOTORCYCLE COULDN'T FIND A NEARBY HOME. AS THE SUV WAS TURNING AROUND, INVESTIGATORS SAY KEVIN MONAHAN WALKED OUT OF HIS HOME AND FIRED TWO SHOTS AT THE VEHICLE. >> WHY DID THE SUSPECT TELL YOU HE OPENED FIRE? >> HE HAS NOT GIVEN US ANY MOTIVE. HE HAS NOT GIVEN US A REASON AS TO WHY HE FELT NECESSARY TO FIRE. THEY TURNED AROUND AND WERE IN THE PROCESS OF LEAVING WHEN THE SHOTS WERE FIRED. >> Reporter: THE SHERIFF SAYS GILLIS, WHO WAS IN THE FRONT PASSENGER SEAT, AND HER THREE FRIENDS NEVER GOT OUT OF THE CAR AND NEVER POSED A THREAT TO MONAHAN, WHO IS CHARGED WITH MURDER. AFTER THE SHOOTING, DRIVING THROUGH THE SECLUDED DOWN OF HEBRON, THE GROUP REACH AND AREA WITH CELL PHONE SERVICE AND CALLED 911. >> THEY'RE YOUNG KIDS LIKE ANYWHERE ACROSS THIS COUNTRY THAT WERE ON A WEEKEND NIGHT LOOKING FOR A FRIEND'S HOUSE. AND IT WAS JUST A SENSELESS AND IT'S A TRAGIC INCIDENT. >> Reporter: MONAHAN, WHO IS 65, HAS PLEAD NOT GUILTY AND IS EXPECTED IN COURT TOMORROW. HIS ATTORNEY TELLS NBC NEWS THE SHOOTING WAS A SERIES OF ERRORS WHICH RESULTED IN A TRAGEDY. TONIGHT A 20-YEAR-OLD SHOT AND KILLED AFTER PULLING INTO THE WRONG DRIVEWAY. MIGUEL ALMAGUER, NBC NEWS. >>> TONIGHT, A JAILED AMERICAN REPORTER APPEARING TO BE IN GOOD HEALTH IN A RUSSIAN COURTROOM, BUT NO PROGRESS IN EFFORTS TO GET HIM FREE AS HE FACES ESPIONAGE CHARGES THAT THE U.S. GOVERNMENT CALLS BASELESS. HERE IS ANDREA MITCHELL. >> Reporter: AMERICAN JOURNALIST EVAN GERSHKOVICH SEEN PUBLICLY TODAY FOR THE FIRST TIME SINCE HIS ARREST IN MARCH. APPEARING STOIC IN A PLAID SHIRT AND JEANS, HIS ARMS CROSSED, STANDING IN A GLASSED ENCLOSURE AS A RUSSIAN COURT DENIED HIS APPEAL AND REFUSED TO GRANT BAIL, RETURNING HIM TO A FORMER KGB PRISON UNTIL HIS NEXT TRIAL HEARING IN MAY. HIS LAWYER SAYS HE IS WILLING TO PROVE HIS INNOCENCE. GERSHKOVICH WAS CHARGED WITH ESPIONAGE, WHICH COULD CARRY A SENTENCE OF UP TO 20 YEARS IN PRISON IF FOUND GUILTY. AND IN RUSSIA, 99% OF THOSE TRIED ARE CONVICTED. THE U.S. AMBASSADOR WAS STANDING WITH HIM IN THE COURTROOM. >> THE CHARGES AGAINST EVAN ARE BASELESS, AND WE CALL ON THE RUSSIAN FEDERATION TO IMMEDIATELY RELEASE HIM. >> Reporter: KEVIN WRITING A NOTE TO HIS PARENTS IN RUSSIAN, THEIR NATIVE LANGUAGE, SAYING, "I AM NOT LOSING HOPE. UNTIL WE MEET SOON, WRITE ME." AND SIGNING THE LETTER WITH HIS NICKNAME, "VANYA." HIS PARENTS SAYING HE ALWAYS LOVED RUSSIA, THE COUNTRY THEY FLED, AND LOVED ASKING QUESTIONS. >> HE JUST HAD THIS NEED TO, DESIRE TO LEARN DEEPER. FIND OUT MANY NEW THINGS. >> WHICH IS ONE OF THE AMERICAN QUALITIES THAT WE ABSORBED, BE OPTIMISTIC. BELIEVE IN HAPPY ENDINGS. >> Reporter: MEANWHILE, AMERICAN PAUL WHELAN HAS BEEN IN A RUSSIAN PRISON FOR FOUR YEARS, FALSELY CONVICTED OF ESPIONAGE. HIS FAMILY SAYS PAUL NOW FEELS ABANDONED BY THE WHITE HOUSE. TODAY THE U.S. AMBASSADOR AGAIN CALLED FOR HIS RELEASE. LESTER? >> ALL RIGHT, ANDREA, THANK YOU. >>> A SIXTH SUSPECT HAS JUST BEEN ARRESTED IN A DEADLY CRIME RING THAT TERRORIZED NEW YORK CITY. IT'S A STORY NBC NEWS HAS BEEN INVESTIGATING FOR NEARLY A YEAR, AND NOW POLICE AND THE VICTIMS' LOVED ONES ARE SPEAKING OUT. ANNE THOMPSON NOW WITH THE LATEST IN OUR ONGOING INVESTIGATION. >> Reporter: UNDER ARREST TONIGHT, 35-YEAR-OLD JAYQWAN HAMILTON, THE FINAL SUSPECT POLICE SAY IN A STRING OF ROBBERIES THAT STOKED FEAR IN NEW YORK CITY'S GAY COMMUNITY AND RESULTED IN THE DEATH OF TWO MEN, 33-YEAR-OLD JOHN UMBERGER, AND 25-YEAR-OLD JULIO RAMIREZ WERE EACH DRUGGED ROBBED AND FOUND DEAD AFTER LEAVING GAY BARS IN HELL'S KITCHEN LAST SPRING. A CITY OFFICIAL SPEAKING PUBLICLY TODAY FOR THE FIRST TIME ABOUT THE ALLEGED CRIME SPREE. 17 INCIDENTS IN ALMOST A YEAR, INSISTING THE MOTIVE WAS GREED, NOT HATE. >> THERE IS NO EVIDENCE OF TARGETING UNDER THE LAW. BUT THAT DOES NOT UNDO THE SORT OF TRAUMA THAT WE KNOW. >> Reporter: THIS IS THE FOURTH TRIP UMBERGER'S MOTHER, LINDA CLARY, HAS MADE TO NEW YORK FROM GEORGIA. >> WE DO NOT WANT ANYONE ELSE TO HURT LIKE WE HURT. >> Reporter: PURSUING JUSTICE FOR HER SON. >> I JUST CAN'T HELP THINK BUT HOW LUCKY JOHN WAS TO HAVE YOU AS HIS MOM. >> I WAS LUCKY TO HAVE HIM AS MY SON. >> Reporter: NBC NEWS HAS SPOKEN TO FIVE ALLEGED VICTIMS OF SIMILAR CRIMES, WHO FELT THEIR COMPLAINTS WERE IGNORED BECAUSE THEY WERE GAY MEN. NEW YORK CITY LEADERS PUSH BACK. >> IT WAS ABOUT BEING THOROUGH. SO WE DO NOT MAKE A MISTAKE OF BEING PREMATURE AND ALLOW DANGEROUS PEOPLE STILL ON THE STREET. >> Reporter: SIX SUSPECTS ARE CHARGED WITH CRIMES, INCLUDING ROBBERY, CONSPIRACY, AND GRAND LARCENY. THREE FACE MURDER IN THE SECOND DEGREE. POLICE SAY THE CRIMINALS STOLE CELL PHONES AND CREDIT CARDS, AND IN SOME CASES, UNLOCKED THEIR VICTIMS' ACCOUNTS WITH FACIAL RECOGNITION. NONE OF THE DEFENDANTS' ATTORNEYS COMMENTED TONIGHT. LAW ENFORCEMENT OFFICIALS SAY THEY ARE INVESTIGATING A SECOND RING, THIS TIME TARGETING BARS AND CLUBS IN DOWNTOWN MANHATTAN, NOT AFFILIATED WITH THE LGBTQ COMMUNITY. SO FAR 26 VICTIMS. LESTER? >> ANNE THOMPSON, THANK YOU. >>> IN 60 SECONDS, THE DEEPENING MYSTERY OVER A DEADLY MASS SHOOTING AT A SWEET 16 PARTY IN ALABAMA AS THE FAMILY >>> STILL NO ANSWER TONIGHT OVER WHO FIRED THE DEADLY SHOTS AT A SWEET 16 PARTY IN ALABAMA OR WHY THEY DID IT. AND WE'RE HEARING FROM THE FAMILY OF A STAR FOOTBALL PLAYER GUNNED DOWN THAT NIGHT. HERE IS PRISCILLA THOMPSON. >> Reporter: ONE MINUTE, ALEXIS DOWDELL WAS SINGING ALONG WITH HER BROTHER ON THE DANCE FLOOR, CELEBRATING ONE OF THE MOST SPECIAL DAYS OF HER LIFE, HER SWEET 16. THEN TRAGEDY. >> THE GUNSHOTS GOING OFF, AND IT WAS LIKE POP, POP, POP, POP. >> Reporter: GUNSHOTS ERUPTED. ALEXIS SAYS HER OLDER BROTHER PHILSTAVIOUS ESCAPED, BUT RAN BACK INSIDE TO SAVE HER. >> HE GRABBED ME AND TRIED TO PUSH ME OUT OF THE BUILDING. >> Reporter: FOUR PEOPLE WERE KILLED, POLICE SAY, AND 32 OTHERS INJURED. AMONG THE TWO VICTIMS, 18-YEAR-OLD PHILS. HIS FINAL MOMENTS NOW SEARED INTO THE MEMORIES OF HIS SISTER AND MOM FOREVER. >> HE WAS LIKE ALWAYS THOUGHT OF OTHER PEOPLE. HE WAS -- I KNOW -- LOST A LOT OF BLOOD. GOT DOWN ON HER KNEES. >> I JUST TOLD HIM THAT, YOU KNOW, HE STRONG AND THAT I LOVED HIM. >> Reporter: THE STAR WIDE RECEIVER WAS SET TO GRADUATE NEXT MONTH, THEN HEADED TO JACKSONVILLE STATE TO PLAY FOOTBALL. >> MY HEART IS CRUSHED. >> Reporter: THE TINY TIGHT KNIT DADEVILLE COMMUNITY NOW GRIEVING THE LOSS, INCLUDING 23-YEAR-OLD CORBIN HALSTON, 19-YEAR-OLD ISAIAH COLLINS, AND 17-YEAR-OLD SHAWNKEVIUS SMITH. POLICE ARE STILL NOT NAME ANYTHING SUSPECTS OR A MOTIVE. TONIGHT A DESPERATE PLEA FOR ANSWERS FROM A COMMUNITY IN MOURNING. >> JUST WANT TO KNOW WHY. >> Reporter: PRISCILLA THOMPSON, NBC NEWS, DADEVILLE, ALABAMA. >>> AND STILL AHEAD TONIGHT, DAMAR HAMLIN'S COMEBACK. THE BUFFALO BILLS' >>> BUFFALO BILLS SAFETY DAMAR HAMLIN HAS BEEN CLEARED TO PLAY FOOTBALL AGAIN AFTER HIS SHOCKING NEAR FATAL COLLAPSE ON THE FIELD. HE IS NOW REVEALING WHAT CAUSED HIS HEART ISSUE AND HAS AN INSPIRING NEW MESSAGE FOR FANS. HERE IS SAM BROCK. >> Reporter: TONIGHT, IT'S A SIGHT FEW COULD HAVE EVEN IMAGINED ONLY MONTHS AGO. DAMAR HAMLIN WORKING OUT WITH THE BILLS AFTER SOME OF THE SCARIEST SECONDS IN PROFESSIONAL SPORTS HISTORY. >> EVERYBODY IS AROUND BROUGHT TO THE BRINK OF DEATH BY A HIT DURING A MONDAY NIGHT FOOTBALL GAME IN JANUARY. >> HOW Y'ALL DOING? >> Reporter: NOW A MIRACULOUS DEVELOPMENT. >> THIS EVENT WAS LIFE CHANGING, BUT IT'S NOT THE END OF MY STORY. SO I'M HERE TO ANNOUNCE THAT I PLAN ON MAKING A COMEBACK TO THE NFL. >> Reporter: THE FULL CLEARANCE TO PLAY COMES A MERE 3 1/2 MONTHS AFTER HAMLIN SUFFERED CARDIAC ARREST. BILLS GENERAL MANAGER BRANDON BEANE SAYS SEVERAL SPECIALISTS GAVE THE GREEN LIGHT. >> THEY'RE ALL IN AGREEMENT. IT'S NOT 2-1 OR 3-1, ANYTHING LIKE THAT. THEY'RE ALL IN LOCKSTEP THAT HE IS CLEARED TO RESUME FULL ACTIVITIES, JUST LIKE ANYONE ELSE. >> Reporter: WE SPOKE TO ONE CARDIOLOGIST WHO DID NOT PERSONALLY TREAT HAMLIN. >> GIVEN THE FACT HE HAS ALREADY EXPERIENCED CARDIAC ARREST ONCE, IS THERE A HIGHER RISK OF OCCURRENCE NOW THAT THIS HAS ALREADY HAPPENED? >> SO IT'S REALLY HARD TO SAY BECAUSE WE DON'T KNOW WHY IT HAPPENED. IN MY OPINION, IT WOULD BE LIGHTNING STRIKING TWICE IN THE SAME PLACE. >> Reporter: HAMLIN SAYS HIS DIAGNOSIS WAS COMMOTIO CORDIS, A DIRECT BLOW TO A SPECIFIC PART OF THE HEART CAUSING CARDIAC ARREST. BUT TONIGHT HE HAS A MESSAGE THAT IS PUMPING ACROSS THE COUNTRY. >> MY HEART IS STILL IN THE GAME. ATLAS SHRUGGED. HARRY SMITH, NBC NEWS, NEW YORK. >> OH TO BE THAT CLEVER.