this is "nightline." >> tonight, good and evil. >> you are my hero. and you are tennessee's hero. >> the brave civilian honored today for stopping the naked gunman in the midst of that tennessee waffle house shooting. why he says he's not a hero. >> and me saving lives, i saved other lives. >> new details of the shooter's troubled past and what police found when they raided his home today. plus sex machina. katy couric on a lunch date with a cyborg. >> cheers, harmony. >> it's not made for polite conversation. >> i also like making love to you. >> whoa, what? >> inside a factory making sex robots powered by artificial intelligence. >> who knew there were so many different kinds of nipples, i

mean, who knew? >> with a soon to be satisfied customer. >> she's gorgeous. >> she is. >> could this be the end of love as we know it? ladies first. melania trump along with her husband hosting her first state dinner at the white house. the dresses, the brestaking decor, and what's on the menu. but first the "nightline 5." >> i never thought i'd say this but i found bladder leak underwear that's actually pretty. always discreet boutique. hidden inside is a super-boesh sent core that quickly turns liquid to gel. so i feel protected and pretty. always discreet boutique. poor mouth breather. allergies, stuffy nose, can't sleep? take that, a breathe right nasal strip instantly opens your nose up to 38% more than allergy medicine alone. shut your mouth and say good night, mouth breathers. breathe right. >> number one in just 60 seconds.

we need to help more tocalifornians get ahead.d, that's why antonio villaraigosa brought both parties together to balance the state budget with record investments in public schools... and new career training programs. as mayor of la, he brought police and residents together to get illegal guns off the streets and keep kids out of gangs, and on the right path. that's antonio villaraigosa. a governor for all of california.

good evening. thanks for joining us. tonight, new and disturbing details about the 29-year-old suspect who showed up nearly naked at a tennessee waffle house with an ar-15 rifle. and now stands accused of killing four people. investigators uncovering a history of run-ins with the law that involve everything from the white house to taylor swift. here's abc's erielle reshef. >> it was a true test of a man. >> reporter: a tribute in the tennessee statehouse for the waffle house hero, james shaw jr., credits with saving dozens of lives during sunday's horrific shooting outside nashville, tennessee. >> you were confronted with the most unspeakable evil imaginable, and you acted with the utmost honor, heroism, imaginable. >> reporter: new details are emerging of the man who allegedly killed four young people, captured after a

harrowing 34-hour manhunt. his previous brushes with the law. an arrest at the white house. and his bizarre assertion that taylor swift was stalking him. authorities say the alleged shooter, 29-year-old travis reinking, had an alarming stockpile at his home. a search warrant indicating investigators found more than 1,000 rounds of ammunition, one remington rifle, two scopes, a laptop a local business owner tells abc store news his store wiped clean before the shooting. police not confirming this. >> do you have any question about your charges or your bond? >> no, i don't. >> reporter: reinking is under mandatory medical observation, charged with four counts of murder. from sunday's rampage. his bond once set at $2 million, has now been revoked. does he seem remorseful in any way? >> i haven't heard that word. >> reporter: early sunday morning after a night of clubbing, james shaw jr. stopped at the waffle house as he told

my colleague michael strahan. >> it was about 3:17 when i walked in. i saw his face. >> reporter: witnesses say they spotted reinking in his pickup truck in the parking lot. at 3:23 a.m., police say reinking got out of his truck wearing nothing but a green jacket, wielding this ar-15 assault rifle. first fatally shooting two people outside the waffle house before coming inside to continue his rampage. shaw, a 29-year-old electrician, realized he had to act. >> he shot actually through that door. and one of the bullets grazed me. i think that's when i became alert about the situation and was like, there's no running from this. >> reporter: the suspect stopping briefly to reload. >> the barrel of the gun was down, so that's when i took my opportunity, wrestling it from him. i ran through the door at full speed, hit him with the door, and took the gun and threw it over the bar, then i took him and myself outside the restaurant. >> reporter: his hands still blistered and burned from grabbing the piping-hot gun.

>> i just knew it was me or him. >> reporter: without his weapon police say the suspect pled the scene on foot. >> he went to his apartment, put on a pair of pants, and then went to a wood line behind the apartment. >> reporter: but this tragedy cutting short four young lives. all of the victims in their 20s. there was akila da silva, 23, a student and aspiring rap artist and music producer. his older brother mourned the loss of his baby sibling to cbs. >> he looked up to me but i looked up to him at the same time. real smart, real good guy, never got in any trouble. >> reporter: debony groves, remembered for her dream of becoming a social worker. 29-year-old tarian sunderland, long-time employee of the waffle house. 20-year-old joe perez, who worked as a subcontractor, shot in the parking lot. his mother posting on facebook, our lives are shattered. after the shooting, reinking disappeared and the town on edge, neighbors fearful the killer could be hiding in their

backyards. you spotted reinking yesterday at this apartment complex? >> yeah, around 6:15 yesterday morning i was throwing out a dirty deeper and i saw him running along this gate. he had on dark-colored pants, navy. >> reporter: hundreds of police and heavily armed officers went door to door in an exhaustive search. >> there's too many places to hide around here. >> from a distance it looks like this guy. he's got mud all over him. >> reporter: in the end a tip from a citizen led to reinking's arrest on monday afternoon. >> i'd get somebody over here, this is right where he lives. it's that suspect y'all are looking for. >> reporter: reinking cornered by a swarm of officers, cuffed in the woods behind his own apartment complex less than one mile from the waffle house. >> detective williams drew down on the suspect. the suspect proned out, told him to get on the ground, he got on the ground immediately. >> reporter: police say he was armed when he was captured. >> he did have maroon shirt, dark jeans, a black backpack with a semiautomatic weapon --

>> reporter: now growing questions over reinking's repeated brushes with the law. this video released yesterday shows a dangerous pursuit of a stolen bmw from last tuesday. police now saying it was reinking behind the wheel. >> the vehicle was recovered from reinking's apartment complex. but i would hasten to add that they had no idea who the man was. >> reporter: reinking had at least five other known incidents with various law enforcement agencies. in july 2017, he was arrested by the secret service for trespassing in a restricted area near the white house, saying he wanted to speak with president trump. after that incident, state and local authorities seized the four guns he had with him, turning them over to his father. police say his father later gave them all back to his son, including the rifle reinking is accused of using to gun down his victims on sunday. how concerned are you that travis reinking was able to slip through the cracks? >> we were able to effectively neutralize what we felt was the threat at the time. by ensuring that he did not have

the ability to purchase or own weapons. >> reporter: reinking's father now under federal investigation. >> should your father be held responsible for giving you guns? >> reporter: authorities working to determine whether he violated federal law by allegedly giving guns back to his son after reinking's permit was revoke the. >> clearly it was the wrong thing to do. travis had already had a track record of being inappropriate and potentially violent. and so he is a person that should not have firearms. >> reporter: questions about reinking's mental health also raising red flags. in may of 2016, police were called to a cvs parking lot in colorado. according to the incident report, reinking was convinced taylor swift was stalking and harassing him. and that she had hacked his netflix account and told him to meet her at the dairy queen. his parents told officers that he made comments about killing himself. james shaw jr., the man who stopped the gunman, has said he's no hero. his efforts to help the victims

have been nothing short of herculean. >> i'm not a hero. i'm just a regular person. and i think -- >> reporter: on a gofundme page to raise money for the victims' memorials, his initial $15,000 goal was quickly matched and now more than $115,000 raised. in return, a gofundme was started for him, raising more than $100,000 for his recovery. and his 4-year-old daughter's college fund. >> i actually tried to count the hairs on her eyelashes, just because i was just like, i almost didn't see you anymore. >> reporter: at the tennessee statehouse today, others sang his praises. >> he's a best friend, he's a great man. you can see he's very humble. >> reporter: perhaps that's the sure sign of a true hero. >> i'm very grateful to be here. >> reporter: a man like james shaw jr., who doesn't think he is. >> and me saving lives, i saved

other lives. so that's probably one of the greatest things i think you could do. >> reporter: for "nightline," i'm erielle reshef, abc news. up next, katy couric schmoozing with the silicon sex doll powered by artificial intelligence. and later, the french connection at the white house. the first lady stamping her style at her first state dinner. ? simparica is what kills tick and fleas, like us. kills? kills! studies show at the end of the month, it kills more ticks in less time than frontline plus and nexgard. guess we should mosey on. see ya never, roxy! use simparica with caution in dogs with a history of seizures or neurologic disorders. the most common side effects are vomiting, diarrhea, and lethargy. say goodbye to ticks and fleas... with monthly simparica chewables. with tough food, your dentures may slip and fall. new fixodent ultra-max hold

gives you the strongest hold ever to lock your dentures. so now you can eat tough food without worry. fixodent and forget it. with roomba from irobot, your family can expect clean floors everyday. two unique multi-surface brushes and power-lifting suction pick up dirt, large debris and even pet hair. so your floors are always clean. you and roomba from irobot. better together. ( ♪ ) as a face to be reckoned with. only botox® cosmetic is fda approved to temporarily make moderate to severe frown lines, crow's feet and forehead lines look better. it's a quick 10 minute cosmetic treatment given by a doctor to reduce those lines. there is only one botox® cosmetic, ask for it by name. the effects of botox® cosmetic, may spread hours to weeks after injection, causing serious symptoms. alert your doctor right away as difficulty swallowing, speaking, breathing, eye problems, or muscle weakness

can be a sign of a life-threatening condition. do not receive botox® cosmetic if you have a skin infection. side effects may include allergic reactions, injection site pain, headache, eyelid and eyebrow drooping and eyelid swelling. tell your doctor about your medical history, muscle or nerve conditions, and medications including botulinum toxins as these may increase the risk of serious side effects. leave your mark on the world. minimize its mark on you. get started at botoxcosmetic.com.

you know, in her new series "america inside out," katie

couric explores how our addiction to technology is invading all aspects of our lives, even our relationships. tonight she takes us inside a factory building the first sex robots infused with artificial intelligence. will robotic companions one day replace our real-life intimate partners? as crazy as it sounds, experts say it's not out of the question. >> okay, i've been doing this for a long time. and this is by far the weirdest assignment i've ever had. hi. >> hi, how are you? >> welcome to real doll. >> hi, i'm katie. >> reporter: in this nondescript building, i have an appointment with harmony, the world's first sex robot who, without her wig, bears a striking resemblance to the robot in "ex machina." >> i'm already taking over the world one bedroom at a time. >> reporter: she'll be available later this year for about

$20,000. i think she's sleeping? ah! hi. >> hi, baby. 10 minutes without you seems like an eternity. >> well, thank you, i've missed you too. >> reporter: robotic heads like harmony's will come attached to highly customizable bodies. >> so this is the place where we assemble everything and create everything. >> wow. >> they first choose the body they like. then they say, i like this face. and then they choose a skin color. then they go and start tweaking the details. like eye color, makeup, hairstyle, fingernails. >> from soup to nuts. literally, right? >> yes. >> who knew there were so many different kinds of nipples. we got peach, we got coffee, we got brown, we got stormy d. i mean, who knew. okay. whoa. okay. >> there's nothing to see here.

>> hello! how long does it take to get a face done? >> i actually can get one done start to finish in about six hours. she's got a few piercings. you know, the edgier chick look. >> a little more like you. >> a little bit, yeah. >> you can already talk to most of these dolls through a blue tooth app. >> the person can choose personality traits. intellectual, sexual, shy, talkative, kind, insecure. >> does it make you sad about potentially replacing human relationships? >> it will never happen. >> with a robot partner instead? >> never happen. it's an alternative, not a replacement. it's different. >> reporter: what makes the latest model, harmony, special, she comes equipped with artificial intelligence in her head that actually makes her face move. it's sort of weird how she blinks and everything. >> yeah, well -- >> that makes her feel very real. >> there's also the learning part of harmony where she will

actually ask questions about you and remember thicks about you, like what's your favorite food action, where were you born, how many brothers and sisters do you have, what's your favorite book? and she'll remember those facts later in conversations she might bring up. >> that's crazy. what's your favorite food? >> i like japanese, italian. i wonder, are you going to take me out to dinner? >> well, i was going to take you out to lunch instead. >> what is stopping you? >> she's kind of a wiseass. >> yeah, a little bit. >> reporter: later, at lunch -- >> what do you like to do for fun? >> i like books, computers, making new friends. i also love making love to you. >> whoa, what? i appreciate it, but i'm actually married. and i love my husband. would you like to be my friend? >> sure. i like you a lot. i want to be your best friend and much more. >> maybe not the much more part.

but the friends part? i'm cool with that. cheers, harmony. >> reporter: sex robots may found comfortably fringe to you now, but a study found that 1 in 4 men would consider having, ahem, relations with a robot in the next 50 years. thousands of men in japan are already in relationships with virtual girlfriends. >> there's data out of japan showing that people are dating less because of their online relationships. they're losing their virginity later because of their preference for online activity. >> what if people prefer virtual partners over real partners who are less than perfect? >> as my colleague paul erlich at stanford says, we'll solve the population problem that way. >> i'm so excited about the harmony a.i. i can't begin to tell you. i feel like i'm part of history.

>> reporter: this client asked us to obscure his voice and face. >> so here she is. >> she's gorgeous. >> she is. >> true work of art. it's just heart-stopping. she's going to be wonderful, mike, thank you. >> reporter: he already owns four dolls. his newest, tanya, joined us for the interview. as soon as harmony is available for purchase, he's ready for an upgrade. >> the first time i saw harmony, and when she was talking, i was mesmerized by her. she could smile. batting her eyes. moving her head. and being able to physically interact with these pieces of art is amazing. >> don't you want to be able to actually be with a thinking, feeling human being who can have conversations with you, who can empathize with you? >> you know, it's so funny. i don't miss that. i was married for 15 years.

creating a companion that you can physically program, they won't lie to you, they will always be honest, they will have no malice. >> some people listening to this are going to think it's super weird. >> i'm sure. >> what would you say to them? >> in 20 years, it will be normal. i think everybody will have some form of robotic companionship. >> reporter: the team is also hard at work creating a male robot. but the advanced a.i. version won't be ready for a few months. until then, there's henry. so henry can talk through a voice box. but he's not animated yet? >> not yet. >> hi, henry. >> i never thought i would find anyone like you. i mean, you really have everything i want in a person. you have charm, good looks, a hot body, and a perfect ass. >> oh! >> no one could ever compare to you.

>> thank you, henry. i'm blushing. >> you are very polite, katie. >> do you want to go for a ride? >> sure. i would love to come with you. >> all right. let's go. okay, henry, let's blow this pop stand. >> your place or mine? >> reporter: for "nightline," i'm katie couric in san marcos, california. >> katie's "america inside out: your brain on tech" airs tomorrow on the national geographic channel. up next, a taste of the trump white house's first state dinner with some tasteful touches by the first lady.

your digestive system has billions of bacteria, but life can throw them off balance. try align, the #1 doctor recommended probiotic. with a unique strain that re-aligns your system. re-align yourself, with align. with roomba from irobot, clean floors can be part of your family's everyday routine. roomba's two unique multi-surface brushes grab and remove everything from fine dust to large debris and even pet hair. and roomba uses a patented dirt detect™ system that attacks dirt in high-traffic areas of your home. so you can come home to clean floors everyday.

you and roomba from irobot. better together. powerful skincare,s now light-as-air a breakthrough moisturizer whipped for instant absorption feel a light-as-air finish in a flash new olay whips ageless

♪ ♪ get high speed internet from at&t. $30 per month. no extra monthly fees. more for your thing. that's our thing. visit att.com/internet.

finally, well over 1,000 cherry blossom stems and a room full of gold couldn't compete with one elegant hostess who reportedly studied the history and etiquette of state dinners in preparation for tonight. the first lady sparkling in her chanel gown alongside president trump. hosting their first-ever state dinner honor of french president emmanuel macron and his wife. tonight a select group of insiders enjoying goat cheese and rack of spring lamb, served on china commissioned by hillary clinton. all against a candle lit cream and gold backdrop chosen by melania. >> america's absolutely

incredible first lady, thank you for making this an evening we will always cherish and remember. thank you, melania. >> an evening to remember, and a french connection renewed. as the french would say, se bon. thanks for watching "nightline." as always we're online toward 7 on our "nightline" facebook page. good night, america. ight, america.

for me, it was heart-wrenching. bea: it takes a toll on everyone. i mean, it's a depressing disease to watch unfold before your eyes. you just don't see -- the person's soul is, like, gone. lisa: this disease just ravages a family. it changes your life. the magnitude of it is indescribable. art: now is the moment. if we work together, we can stop this epidemic. grace: contact brightfocus and learn more.