this is "nightline." >> tonight, airport horror. >> shots fired, multiple down. >> chaos and bloodshed at a florida airport. a gunman opens fire in an unsecured baggage claim area, killing five before surrendering. >> they're shooting run, run, leave everything, go. >> you didn't know if you were going to get shot. >> harrowing accounts from witnesses escaped massacre, and what we're learning about the young military-trained suspect. elegant exit. michelle obama delivering her final speech as first lady. >> being your first lady has been the greatest honor of my life and i hope i've made you proud. >> a standard-bearer who broke all the rules, making herself and the white house accessible. >> can i sleep over in the lincoln bedroom? >> no, no. >> a look back at her legacy. funny at a funeral?

"star wars" actress carrie fisher getting one last laugh at her burial. the unusual urn that had her famous friends in stitches. but first the "nightline 5." >> when we have a cough or cold, we fight it with everything we've got. pills, tea, syrups, steam, the list goes on and on. whatever you, do add vick's vaporub to the mix. lasts up to eight hours. clinically proven cough relief so you can sleep. hey, need fast heartburn relief? try cool mint zantac. it releases a cooling sensation in your mouth and throat. zantac works in as little as 30 minutes. nexium can take 24 hours. cool mint zantac. no pill relieves heartburn faster. >>

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good evening. thanks for joining us. tragedy and horror at a florida airport. still shut down tonight. an active crime scene after a lone gunman began executing strangers at random in baggage claim. tonight we have new detail on this the suspect, his military background, his possible motives, and the potentially deadly intersection of mental illness and guns. a scene of pandemonium. >> shots fired in this building! >> reporter: and horror. just moments after a lone gunman opened fire in the baggage claim area at ft. lauderdale airport. leaving five dead, hundreds running in terror. >> people started yelling and screaming, run, exit, get out of there. >> police coming and saying, good down, get down, everyone stay down. >> reporter: law enforcement searching for answers. >> the citizens of florida will not tolerate senseless acts of evil. we can't imagine how this ever happened in a state like ours. >> reporter: the terrifying ordeal began this afternoon. authorities say the suspected

shooter arrived at ft. lauderdale airport from alaska, traveling like any other passenger. he allegedly took out a semiautomatic handgun from his checked luggage, loaded it in the bathroom, and began his cold-blooded killing spree. bodies were struck down amongst the baggage. still in shock, this woman describing what she saw. >> casings were flying all around us. >> i had a perfect picture of him coming and walking up and down shooting the people. i mean, i just can't believe that was possible. >> it was very scary. you didn't know if you were going to get shot. >> he went towards the right toward carousel twots and 3 and started randomly shooting people at will. no rhyme, no reason. a yes than with his two boys got shot in the wrist. a lady, her husband was killed, shot in the head. >> reporter: nigel wilson was going through tsa when he heard gunfire. >> just about to step through when we heard the shots fire and actually heard people screaming and running towards me.

they opened all the gates and told us to run through. they were screaming run, run, run, the security people. they're shooting, run, leave everything, go. >> reporter: some passengers in a state of panic running across the tarmac to safety. others sheltering in place. >> everybody ducked down and was on the ground. people, we made shields with the tables that we had. a group led us to hide in the kitchen of that airport restaurant, deli. >> reporter: local authorities responding to the scene within minutes as witnesses say the suspect continued his rampage. till he put the gun down, laid down spread eagle, to surrender. >> one shooter possibly detained at this time, multiple victims. >> reporter: the suspect who was carrying a military i.d. is now known as 26-year-old esteban santiago. this photo taken by eyewitness mark lee shows him being led away by law enforcement. >> i just remember seeing his face and thinking, wow, he looks

so young. he just had this blank stare. just kind of really -- just no emotions. >> reporter: despite the quick action of police, the suspected shooter had already taken the lives of five. injured at least eight others. michael took this photo of one of the injured from the window of the terminal. >> i hear a popping noise and somebody says, shots fired. i grabbed two of my children, ran outside. i'm looking at a man and a woman. a man bleeding profusely and the woman who just says, help, help. >> reporter: paramedics then rushing to his side and racing him out on a stretcher. the airport swiftly put on lockdown. some passengers stranded in planes with little information. >> what happened here right now, i don't know, we're just hearing it right now. >> reporter: others rushing to safety on the tarmac. >> the investigation continues. we have area s.w.a.t. teams in the the broward sheriff's office s.w.a.t. team clearing the entire airport. there will be no movement in or

about the airport until our s.w.a.t. teams give me realtime information that it's safe. right now we're taking this scene is considered fluid and active. >> reporter: authorities do believe he act the alone and because they captured him alive, they hope he'll be able to provide them answers. he's currently in federal custody. >> often in lone wolf situations the shooters either commit suicide or they commit suicide by cop. this was a somewhat different scenario. >> this was a strange ending. normally it ends very violently, like it starts. by him basically -- it appears he emptied his gun, then lay prone. giving himself up. without a fight. which is a strange conclusion to all of this, that we have to continue to interrogate this suspect. >> reporter: emerging tonight a hazy but disturbing picture of who the shooter was and what might have motivated him. >> this is a 26-year-old army veteran with a very troubled life. and the more the fbi looks into his background, the more concerned they are.

>> reporter: born in new jersey but raised in puerto rico, esteban santiago's instagram account shows a young man proudly in uniform, a member of the army national guard serving in both puerto rico and alaska. he was deployed to iraq but then four months ago he was discharged without ever rising above the rank of private first class. >> that's a sign of a bad soldier. he never rose through the ranks as most members of the military would over the course of a decade. >> reporter: and a deeper look into santiago's social media is raising concerns. his profile statement reads, here's to finding whether or not your mission on earth is finished -- if you're still alive it isn't. and then at some point last year, santiago made himself known to the fbi. >> santiago actually showed up at the fbi office of anchorage, alaska, complaining to agents that the government, the u.s. government, was forcing him to watch isis videos. agents at the time thought he was incoherent. barely understandable. and they actually used the law

to have him committed for mental evaluation. >> reporter: tonight as he sits in federal custody his motives remain a mystery. terror has not been ruled out. the fbi and police are looking for clues that his last known address at this trailer park in anchorage. and at the home of his relatives in union city, new jersey. >> there's a lot of investigation that has to occur now, looking back at his social media footprint, looking back at founding members and friends. so we have a lot of work to do to figure out what might have set him off. >> reporter: what we do know is he is a licensed gun owner, and today he boarded a flight after checking one bag, a hard case made to carry a gun. >> it appears that everything was done legally. >> reporter: while tsa confiscates hundreds of weapons at checkpoints and carry-ons, a gun owner who follows the rules can travel with a weapon as checked baggage. >> once you've packed it correctly, you have to declare it, you have to take it to the airline check-in counter and say, this is my weapon, i want to check it, i want it to go into the baggage compartment so

i can get it at the other end of my flight. >> reporter: as seen in this instructional video, tsa requires the weapon be unloaded, packed in a hard-sided case, plastic, wood, or metal, and then locked. >> pack all unloaded firearm and firearm parts in a locked part-side container as checked baggage. >> reporter: alongside the weapon you're allowed to pack ammunition as well, which santiago apparently did. >> he checked the weapon in with the airline, was able to recover it as he finished his flight in ft. lauderdale. >> reporter: tonight while airports across the nation are under heightened security, in florida, thousands of passengers are still stranded. the governor doing his best to reassure a community in shock. >> my number one priority right now in florida is to keep everybody safe. but i can tell you, everybody is working hard to find out exactly what happened and to hold whoever did this accountable. i don't ever want this to happen again.

up next, michelle obama's final speech as first lady. the moment that had the audience in tears. later, leave it to carrie fisher to make people laugh at her own funeral. the urn that no one will ever forget. per roll more "doing chores for dad" per roll more "earning something you love" per roll bounty is more absorbent, so the roll can last 50% longer than the leading ordinary brand. so you get more "life" per roll. bounty, the quicker picker upper as after a dvt blood clot,ital i sure had a lot to think about. what about the people i care about? ...including this little girl. and what if this happened again? i was given warfarin in the hospital, but wondered, was this the best treatment for me? so i asked my doctor.

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michelle obama delivered her final speech as first lady today with a mixture of grace, intelligence, and fierce maternal instincts. she leaves behind a ground-breaking legacy of hope and eninspiration. we take a look back. >> may i say for the last time

officially, welcome to the white house. >> reporter: a monumental moment from michelle obama today delivering her final speech as first lady of the united states of america. >> in this country plenty of folks, including me and my husband, we started out with very little. but with a lot of hard work and a good education, anything is possible. even becoming president. >> reporter: emotionally reflecting on the long journey that led her family from humble beginnings to the white house. >> this country belongs to you. to all of you. from every background and walk of life. >> reporter: from those first steps onto the world stage on election night in 2008 in chicago, she struck a chord with so many, transfixed by a first lady who was unapologetically herself and never afraid to break the rules. >> can i sleep overnight in the lincoln bedroom? >> no, no.

>> reporter: goofing off on "kimmel." showing off dancing skills on "ellen." a college humor rap video. ♪ encouraging kids to go to college. but it was always with a purpose. michelle obama brought personality to her platforms like no one before her. from the beginning, this princeton and harvard-educated lawyer maintained that her primary role in the white house would be mom in chief to her young daughters. >> she had these very young children coming into the white house and as she has said since, what am i doing with these babies? it is a very difficult role. >> reporter: but she soon adopted causes that defined her as america's mom. improving the lives of families all over the country. >> michelle obama! >> reporter: a signature cause, fighting childhood obesity with her "let's move" campaign. spurring the country to get up and dance. pushing healthy eating on young audiences.

on shows like "sesame street." >> i better get some breakfast right away. that's some healthy breakfast right there. >> that's my breakfast, wait, grover -- >> reporter: a champion for higher education, pushing the disadvantaged to dream big and working globally to give more kids to access quality education. her passion rooted in her own uniquely american story, growing up on the south side of chicago. >> her father's family from georgetown, south carolina, not far removed from slavery. making the migration to chicago as so many african-americans did. understanding that the way for his children to have a better life was a good education. and for her to be able to embody that was very, very important. >> reporter: a world apart from her initiation into american royalty. ♪ >> reporter: but as the very first african-american first lady, she faced unique

challenges. something she addressed in a 2015 commencement at the historically black tuskegee university. >> the first time i was on a magazine cover, it was a cartoon drawing of me with a huge afro and a machine gun. that knocked me back a bit. >> reporter: she talked about the burden of all the scrutiny on oprah winfrey. >> when you were labelled that angry black woman, was that one of the things that knocked you back a bit? >> that's one of the those things that you sort of think, dang, you don't even know me. >> i don't think there's any question but that the president and first lady were the targets of a great deal of racism. and i think that michelle obama handled it with grace. >> reporter: her grace on display in every aspect. michelle obama sparked a fashion revolution, combining tradition with flair, daring to be bold yet relatable. >> she was a first lady that wore converse sneakers to the white house easter egg roll.

she was a first lady that mixed high and low fashion. she was relatable. >> reporter: while she shied away from political warfare in the past, this year she entered the fray with full force. her speech at the democratic national convention perhaps eclipsing even the candidate herself. >> i wake up every morning in a house that was built by slaves. and i watch my daughters, two beautiful, intelligent black young women, playing with their dogs on the white house lawn. >> reporter: and then, later in october, coming out strongly against remarks made in 2005 by donald trump. >> i can't believe that i'm saying that a candidate for president of the united states has bragged about sexually assaulting women. and i have to tell you that i can't stop thinking about this. it has shaken me to my core in a

way that i couldn't have predicted. >> reporter: her popularity and political promise has led many to question if she will ever run for office. a question she answered on cbs. >> would you ever run for office? >> no. >> i have to ask you. >> no, no. >> no kind of office? >> no. >> reporter: now as the obamas prepare to say good-bye, the first lady imploring americans to never give up hope. >> empower yourselves with a good education. then get out there and use that education to build a country worthy of your boundless promise. lead by example with hope, never fear. and know that i will be with you, rooting for you and working to support you for the rest of my life. being your first lady has been the greatest honor of my life. and i hope i've made you proud. next, carrie fisher gets the last laugh. the hilarious stunt that brought joy to her grieving loved ones.

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finally, here's something truly remarkable. even in death, carrie fisher managed to make us laugh in the face of despair. >> i'll be around. >> i think i'm my mom's best friend. more than a daughter. my mother really wants me to be an extension of her wishes, an extensi extension of her. >> reporter: tonight the complex relationship between carrie fisher and debbie reynolds, seen chronicled in the new hbo documentary "bright lights." originally slated to premiere in march, the film's debut has been moved up to this saturday in the wake of their successive tragic deaths. >> i feel dazed in a way. but i like the old days. >> reporter: earlier today reynolds was laid to rest along with some of fisher's ashes in forest lawn in l.a., a site selected by brother and son todd fischer as he told kabc. >> as i'm standing there, the

hummingbirds come. to where we were standing. and i knew that was the right spot. for her and carrie. >> reporter: todd was seen at the burial holding his sister carrie's ashes in an urn resembling a prozac pill. a light-hearted nod to carrie's well-documented battle with depression. on thursday, a private memorial was held for friends and family in hollywood. in attendance, meg ryan, who starred with carrie in "when harry met sally." >> someone is staring at you in personal growth. >> reporter: meryl streep, who sang "happy days are here again" at the memorial, a tribute to their performance on oprah in 2011. ♪ happy days are here again >> truly a mother-daughter duo for the ages. they'll be missed. thanks for watching abc news. as always we're online at abcnews.com and our "nightline" facebook page. good night, america, have a great weekend.

>> hey, everybody, get ready, because in the next 30 minutes, you may be watching someone walk out of here very, very rich. it's time to play "who wants to be a millionaire." [cheers and applause] [dramatic music] ♪ welcome to the show. are you guys ready to play "millionaire" today? [cheers and applause] all right. recently engaged, our returning

contestant would love to give his fiancée the honeymoon of her dreams. from devon, pennsylvania, please welcome back patrick walsh. hey, buddy, looking good. >> thank you, you are too. smart. like the smart ties going, power ties. >> power ties. we are powerful men. >> we are, yes. >> not to be messed with. >> got to impress my fiancée. >> yeah, you got your fiancée and the wedding coming up, but now is the family--have they approved of you? is this wedding gonna happen? >> i'm a little nervous about this. you see, i'm 6'0", which is a decent height, but alyssa, my fiancée, has a father, my future father-in-law, and three brothers, all of whom are 6'2" to 6'6", so they're literally all looking down on me, judging me and my every move, including coming on this show today, so they're watching now, wondering if i'm gonna be a complete and total mess-up. >> so you feel like you need to prove yourself, that you are smart enough and good enough for this girl that you're gonna marry. >> that's the pressure that i'm under right now. >> well, you're up to $10,000, so it's not bad. i feel like you're... >> let's get more. let's--six or seven digits?