AND HODA KOTB, LIVE FROM PYEONGCHANG, SOUTH KOREA.PYEONGCHANG, SOUTH KOREA. >>> WELCOME TO "TODAY" ON THIS>>> WELCOME TO "TODAY" ON THISTHURSDAY MORNING.THURSDAY MORNING.WE ARE HERE IN OLYMPIC PARK IN PYEONGCHANG, SOUTH KOREA, BUT ITPYEONGCHANG, SOUTH KOREA, BUT IT GOES WITHOUT SAYING THAT OURGOES WITHOUT SAYING THAT OURHEARTS ARE DEFINITELY BACK HOME. >> THEYRE BACK HOME AND OURHOME.>> THEYRE BACK HOME AND OUR HEARTS ARE HEAVY.HEARTS ARE HEAVY. ITS HARD TO EVEN IMAGINE THATITS HARD TO EVEN IMAGINE THAT THIS HAS HAPPENED AGAIN.THIS HAS HAPPENED AGAIN.>> AGAIN. >> ITS HAPPENED AGAIN.>> ITS HAPPENED AGAIN. AND WE WANT TO GET RIGHT TO THEAND WE WANT TO GET RIGHT TO THE LATEST OVERNIGHT.LATEST OVERNIGHT.THE DEATH TOLL, IN A WORD, ISTHE DEATH TOLL, IN A WORD, ISSTAGGERING.STAGGERING.17 PEOPLE WERE KILLED MAKING17 PEOPLE WERE KILLED MAKINGTHIS ONE OF THE DEADLIEST MASS SHOOTINGS IN AMERICAN HISTORY.SHOOTINGS IN AMERICAN HISTORY. AT LEAST 14 OTHERS WERE WOUNDED,AT LEAST 14 OTHERS WERE WOUNDED, SOME OF THEM ARE IN CRITICALSOME OF THEM ARE IN CRITICALCONDITION THIS MORNING. >> THE SUSPECTED GUNMAN IS IN>> THE SUSPECTED GUNMAN IS IN CUSTODY.CUSTODY.OFFICIALS IDENTIFYING HIM ASOFFICIALS IDENTIFYING HIM AS19-YEAR-OLD NIKOLAS CRUZ, A FORMER STUDENT AT MARJORY AFORMER STUDENT AT MARJORY STONEMAN DOUGLAS HIGH SCHOOL WHOSTONEMAN DOUGLAS HIGH SCHOOL WHOHAD RECENTLY BEEN EXPELLED. >> WE ARE ALSO SEEING DISTURBING>> WE ARE ALSO SEEING DISTURBING IMAGES RECORDED AND SHARED BYIMAGES RECORDED AND SHARED BY FRIGHTENED STUDENTS AS THEYFRIGHTENED STUDENTS AS THEY BARRICADED THEMSELVES INBARRICADED THEMSELVES IN CLASSROOMS.CLASSROOMS.THIS IS WHAT KIDS AND THEIRTHIS IS WHAT KIDS AND THEIRTEACHERS WENT THROUGH.TEACHERS WENT THROUGH.THIS IS HOW IT LOOKED, HOW IT SOUNDED AND HOW IT FELT FORITSOUNDED AND HOW IT FELT FOR THEM.THEM.WE ARE GOING TO SHOW YOU ONE OFWE ARE GOING TO SHOW YOU ONE OFTHOSE VIDEOS NOW.THOSE VIDEOS NOW.WE SHOULD WARN YOU IT ISWE SHOULD WARN YOU IT ISDISTURBING. >> HOLY --.>> HOLY -- [ GUNFIRE ][ GUNFIRE ] >> OH, MY GOD!>> OH, MY GOD! OH, MY GOD!OH, MY GOD! [ GUNFIRE ][ GUNFIRE ] [ SCREAMING ][ SCREAMING ] >> THERES SOMETHING ABOUT>> THERES SOMETHING ABOUT SEEING THAT VIDEO THAT PUTS YOUSEEING THAT VIDEO THAT PUTS YOU EXACTLY WHERE THOSE KIDS WERE.EXACTLY WHERE THOSE KIDS WERE. >> AND WE CANNOT BECOME NUMB TO>> AND WE CANNOT BECOME NUMB TO THIS.THIS.>> WE CANT. WE HAVE COMPLETE COVERAGE FORWE HAVE COMPLETE COVERAGE FOR YOU THIS MORNING AND WERE GOINGYOU THIS MORNING AND WERE GOING TO TALK TO ONE OF THE STUDENTSTO TALK TO ONE OF THE STUDENTS WHO WAS WOUNDED.WHO WAS WOUNDED. WE WILL BEGIN, THOUGH, WITHWE WILL BEGIN, THOUGH, WITH NBCS GABE GUTIERREZ.NBCS GABE GUTIERREZ. HE IS AT THE SCENE IN PARKLAND,HE IS AT THE SCENE IN PARKLAND, FLORIDA.FLORIDA.GABE, GOOD MORNING.GABE, GOOD MORNING.>> Reporter: HODA, GOOD MORNING.>> Reporter: HODA, GOOD MORNING.IT IS SO DIFFICULT TO WATCH THAT VIDEO.SO DIFFICULT TO WATCH THATVIDEO.JUST A SHORT TIME AGO THE SUSPECT WAS BOOKED INTO JAIL ANDSUSPECT WAS BOOKED INTO JAIL AND HE IS NOW FACING 17 COUNTS OFHE IS NOW FACING 17 COUNTS OF PREMEDITATED MURDER.PREMEDITATED MURDER. AUTHORITIES SAY THE YOUNG GUNMANAUTHORITIES SAY THE YOUNG GUNMAN BEGAN HIS RAMPAGE HERE OUTSIDEBEGAN HIS RAMPAGE HERE OUTSIDE THE SCHOOL KILLING THREE PEOPLETHE SCHOOL KILLING THREE PEOPLE BEFORE GOING INSIDE THROUGHBEFORE GOING INSIDE THROUGH SCHOOL SECURITY KILLING 12 MORE,SCHOOL SECURITY KILLING 12 MORE, TWO LATER DIED AT THE HOSPITAL.TWO LATER DIED AT THE HOSPITAL. STUDENTS AND TEACHERS HUDDLEDSTUDENTS AND TEACHERS HUDDLED INSIDE CLASSROOMS, RECORDINGINSIDE CLASSROOMS, RECORDING SOME OF THE CARNAGE ON SOCIALSOME OF THE CARNAGE ON SOCIAL MEDIA.MEDIA.SOME OF THEM DIDNT KNOW WHAT TO MAKE OF THIS AT FIRST BECAUSETOMAKE OF THIS AT FIRST BECAUSE THEY HAD A FIRE DRILL EARLIER INTHEY HAD A FIRE DRILL EARLIER IN THE DAY.THE DAY.1BUT UNFORTUNATELY, THIS TIME IT1BUT UNFORTUNATELY, THIS TIME IT1WAS NO DRILL.1WAS NO DRILL.1>> LETS GO! >> Reporter: THESE ARE THE1>> Reporter: THESE ARE THE UNFORGETTABLE IMAGES OF THE1UNFORGETTABLE IMAGES OF THE HORROR INSIDE THE NATIONS1HORROR INSIDE THE NATIONS LATEST SCHOOL MASSACRE.1LATEST SCHOOL MASSACRE. AUTHORITIES SAY THE LONE GUNMAN,1AUTHORITIES SAY THE LONE GUNMAN, 19-YEAR-OLD NIKOLAS CRUZ, WAS A119-YEAR-OLD NIKOLAS CRUZ, WAS A FORMER STUDENT AT MARJORY1FORMER STUDENT AT MARJORY STONEMAN DOUGLAS HIGH SCHOOL IN1STONEMAN DOUGLAS HIGH SCHOOL IN PARKLAND, FLORIDA.1PARKLAND, FLORIDA.1JUST AFTER 2:30 WEDNESDAY AFTERNOON, INVESTIGATORS SAY HE1AFTERNOON, INVESTIGATORS SAY HE STORMED IN WITH AN AR-15 RIFLE1STORMED IN WITH AN AR-15 RIFLE AND MAGAZINES OF AMMUNITION.1AND MAGAZINES OF AMMUNITION. >> WE HEAR GUNSHOTS.1>> WE HEAR GUNSHOTS. >> Reporter: FRESHMAN BRANDON1>> Reporter: FRESHMAN BRANDON CORASCO IS JUST 14 AND YET HE1CORASCO IS JUST 14 AND YET HE SAW THE UNTHINKABLE.1SAW THE UNTHINKABLE. >> I SAW TWO GIRLS DEAD NEXT TO1>> I SAW TWO GIRLS DEAD NEXT TO EACH OTHER HOLDING HANDS.1EACH OTHER HOLDING HANDS. THERE WAS ANOTHER BODY IN FRONT1THERE WAS ANOTHER BODY IN FRONT OF ME.1OF ME. THERE WAS THREE ON THE BATHROOM1THERE WAS THREE ON THE BATHROOM DOOR.1DOOR.1>> Reporter: S.W.A.T. TEAMS SWARMED THE BUILDING, RACING1SWARMED THE BUILDING, RACING FROM ONE CLASSROOM OF TERRIFIED1FROM ONE CLASSROOM OF TERRIFIED CHILDREN TO THE NEXT.1CHILDREN TO THE NEXT. >> WEVE GOT THE PATIENT LOADED.1>> WEVE GOT THE PATIENT LOADED. WERE GOING TO GET HIM OUT OF1WERE GOING TO GET HIM OUT OF HERE.1HERE.1BE ADVISED HE IS STATING THERE ARE MULTIPLE PEOPLE SHOT INSIDE1ARE MULTIPLE PEOPLE SHOT INSIDE THE BUILDING.1THE BUILDING.1>> Reporter: FROM STUDENTS1>> Reporter: FROM STUDENTS1BARRICADED INSIDE CAME1BARRICADED INSIDE CAME1HEART-BREAKING MESSAGES TO1HEART-BREAKING MESSAGES TO1PARENTS AND LOVED ONES.1PARENTS AND LOVED ONES.1>> SHE WAS SENDING US TEXTS SAYING I LOVE YOU, IM SORRY,1SAYING I LOVE YOU, IM SORRY, BECAUSE SHE DIDNT THINK SHE WAS1BECAUSE SHE DIDNT THINK SHE WAS GOING TO MAKE IT.1GOING TO MAKE IT. >> Reporter: OVERNIGHT THE FBI1>> Reporter: OVERNIGHT THE FBI INTERVIEWED EYEWITNESSES1INTERVIEWED EYEWITNESSES INCLUDING SENIOR JULIAN DE1INCLUDING SENIOR JULIAN DE COSTI, HE AND 15 OTHER STUDENTS1COSTI, HE AND 15 OTHER STUDENTS CRAMMED INTO A CLOSET.1CRAMMED INTO A CLOSET. >> I CANT RUN I JUST HAD1>> I CANT RUN I JUST HAD SURGERY.1SURGERY.1IM HOPPING TO HER.1IM HOPPING TO HER.1WHEN I GET TO THE DOOR, I HEAR1WHEN I GET TO THE DOOR, I HEAR1GUNSHOTS TO MY LEFT.1GUNSHOTS TO MY LEFT.1>> Reporter: AS AUTHORITIES1>> Reporter: AS AUTHORITIES1CLEARED SECTIONS OF THE SCHOOL1CLEARED SECTIONS OF THE SCHOOL1STUDENTS WERE MARCHED OUT OF THE1STUDENTS WERE MARCHED OUT OF THE1BUILDING.1BUILDING.1>> WE DIDNT KNOW WHAT WAS GOING1>> WE DIDNT KNOW WHAT WAS GOING1ON.1ON.1ONCE WE SAW THE STUDENTS1ONCE WE SAW THE STUDENTS1RUNNING, I STARTED TO THINK1RUNNING, I STARTED TO THINK1WHATS HAPPENING.1WHATS HAPPENING.1THEN I HEARD THE GUNSHOTS AND I1THEN I HEARD THE GUNSHOTS AND I1WAS LIKE OH, MY GOD.1WAS LIKE OH, MY GOD.1I JUST RAN.1I JUST RAN.1>> I JUST HOPE ALL THE OTHER1>> I JUST HOPE ALL THE OTHER1KIDS ARE OKAY.1KIDS ARE OKAY.1OH, MY GOD.1OH, MY GOD.1>> Reporter: PRESIDENT TRUMP,1>> Reporter: PRESIDENT TRUMP,1NOT SPEAKING ON CAMERA BUT1NOT SPEAKING ON CAMERA BUT1TWEETING MY PRAYERS AND1TWEETING MY PRAYERS AND1CONDOLENCES TO THE FAMILIES OF2CONDOLENCES TO THE FAMILIES OF2THE VICTIMS.2THE VICTIMS.2NO CHILD, TEACHER OR ANYONE ELSE2NO CHILD, TEACHER OR ANYONE ELSE2SHOULD EVER FEEL UNSAFE IN AN2SHOULD EVER FEEL UNSAFE IN AN2AMERICAN SCHOOL.2AMERICAN SCHOOL.2AMONG THE 17 PEOPLE KILLED, A FOOTBALL COACH.OPLE KILLED, A2FOOTBALL COACH.214 OTHERS WERE INJURED. NOT ALL OF THE VICTIMS HAVE BEEN2NOT ALL OF THE VICTIMS HAVE BEEN IDENTIFIED.2IDENTIFIED.2>> SOME OF THESE CHILDREN HAD NO I.D., THEY HAD NO -- THEY LEFTNO2I.D., THEY HAD NO -- THEY LEFT THEIR BACKPACKS, THERE WERE NO2THEIR BACKPACKS, THERE WERE NO CELL PHONES.2CELL PHONES. >> Reporter: INVESTIGATORS SAY2>> Reporter: INVESTIGATORS SAY THE ALLEGED GUNMAN SLIPPED OFF2THE ALLEGED GUNMAN SLIPPED OFF CAMPUS BY MIXING IN WITH CROWDS2CAMPUS BY MIXING IN WITH CROWDS OF STUDENTS.2OF STUDENTS. POLICE TRACKED HIM DOWN TO A2POLICE TRACKED HIM DOWN TO A NEIGHBORING CITY AND TOOK HIM2NEIGHBORING CITY AND TOOK HIM INTO CUSTODY ABOUT AN HOUR2INTO CUSTODY ABOUT AN HOUR LATER.2LATER.2>> NO PARENT SHOULD EVER HAVE TO2>> NO PARENT SHOULD EVER HAVE TO2SEND THEIR KIDS TO SCHOOL AND2SEND THEIR KIDS TO SCHOOL AND2HAVE THEM NOT RETURN.2HAVE THEM NOT RETURN.2>> Reporter: FLORIDA GOVERNOR2>> Reporter: FLORIDA GOVERNOR2RICK SCOTT CALLING THIS PURE2RICK SCOTT CALLING THIS PURE2EVIL.2EVIL.2NOW, THERE ARE NO CLASSES HERE FOR THE REST OF THE WEEK. HERE2FOR THE REST OF THE WEEK. TODAY GRIEF COUNSELORS WILL BE2TODAY GRIEF COUNSELORS WILL BE ON HAND AT A SITE NEARBY.2ON HAND AT A SITE NEARBY. HODA AND SAVANNAH, IT SEEMS LIKE2HODA AND SAVANNAH, IT SEEMS LIKE WE SAY THIS SO OFTEN NOW, BUT2WE SAY THIS SO OFTEN NOW, BUT THIS IS NOW AMONG THE DEADLIEST