the fbi for 18 years until someone in his inner circle turned him in. for the first time on camera we hear from that woman. >> the phrase i used all the time is, we've got to start the killing. >> mommy. >> the family feud fumble that has moms, dads and others laughing on the internet. physical the "nightline 5." >> we stop arthritis pain so you don't have to stop. because you believe in go. onward. today's the day. carpe diem. tylenol eighghhour arthritis pain has two layers of pain relief. the first is fast. the second lasts all day. we give you your day back, what you do with it is up to you.

seconds. good evening. thanks for joining us. a dream vacation quickly turns into a nightmare for thousands of passengers on one of the world's lararst cruise ships. theuxury line over its way to the bahamas gets caught in a powerful storm. monster waves and hurricane-force winds battering the ship causing injuries and frayed nerves. just hours ago it docked safely back at home. now questions over why they set sail in the first place. here's abc's linsey davis. >> reporter: a aer four rrowingays at sea, the "anthem of the seas" finally made it back to shore. >> whoo-hoo! >> reporter: families waiting, cheering, welcoming their loved ones home. the 4,500 now sea-weary passengers -- >> glasses breaking everywhere. >> reporter: - ready to be on

>> worst experience. only the vies. >> reporter: the luxury cruise turned into a nightmare when the 1,100-foot boat battled 30-foot waves and hurricane-force winds gusting up to 120 miles per hour. ceilings came apart. vases destroyed. deck chairs tossed in a pile. panicked passengers crowded the stairs trying to get back to their rooms. once insidede f fming what was happening in their cabins. it was all captured in these dramatic videos recorded by passengers. >> oh my god. >> reporter: jacob eyebred watched as waved crashed against his window. >> we thought we were going to die. we all thought this was going to be it. >> reporter: he prepared for the worst. >> this felt like it was a disaster movie. one of those, i don't know, towering infernos. this was even crazier. i was living in this hollywood movie. >> it's probably the biggest scare that i've had so far in my life.

strand via skype. she was so afraid she called her mother in case she didn't survive. >> just wanted to call and say i loved her. >> reporter: the harrowing ordeal played out on social media. some passengers reporting the ship listing at 45 degrees. >> trapped in our rooms. we can't leave. >> reporter: but now a lot of that fear is turning to anger. peter alupa says he's furious they even set sail with the storm just off the coast. >> he was actually playing chicn with our lives, in retrospect. we didn't have any idea the magnitude of thisstorm. >> reporter: he says the boat wag listing so much his third-deck cabin was under water. >> our portal was like a washing machine literally. deck. >> reporter: but the "anthem of the seas" captain said he didn't realize the magnitude of the storm ahead of time and he's now defending his decision to set sail with a storm brewing in the atlantic. >> the whole thing was no bigger than this. and it just exploded. >> reporter: in a video

4,500 passengers' staterooms monday, captain clause andersen, who ordered everyone on board to stay in their rooms, says he's never experienced anything like it. >> honestly have not seen a low pressure that was not forecasted, anything near what we actually experienced. >> reporter: tonight the company apologized to its passengers. royal caribbean releasing a statement saying, o o shipnd our c cw performed very well to keep everyone safe during severe weather. despite that fact the event, exceptional as it was, identified gaps in our planning system we are e dressing. what happened this week showed that we need to do better. the terrifying ordeal aboard "the anthem of the seas" comes just ten months after the ship's maiden voyage. launched with much fanfare, the state-of-the-art ship, the third largest in the world. with all the attractions like bumper cars and indoor skydiving. the floating resort set t il

headed for the bahamas. it got caught in the storm off the coast of south carolina nexe day. the storm was not a surprise, we saw it coming days in advancnc even the national weather service put out a hurricane force wind warning 24 hours in advance. >> reporter: the storm suddenly gained strength. >> a lot of our maritime disasterer throughout history have taken place during the winter. we get these massive, really intense cyclones that develop over the ocean in the winter months, nothing to be trifled with. >> reporter: the ship was forced to turnaround and made its w w slowly back to new york. royal caribbean says "anthem of the seas" didn't sustain any major damage in the storm. according to the cruise line, at least four people suffered minor injuries and the ntsb says it's currently considering an investigation. weather can be deay on the high seas. the "el faro" said sail during hurricane joaquin. the storm battered the ship till it sank, killing all 33 people

this is the ntsb video of its final resting place three miles below the surface. the owner of the "el faro" said they fully supported the search and the investigation. it's not the only massive ship to be undone by weather. 30-foot rogue waves hit this cruise ship near spainn 2010, smashing through windows. a direct hit on unsuspecting diners. the terrifying wave killed two and injured 14 others. the company said the incident was unforeseen because the weather was not really that bad. and look at what happened on this ship during a bad storm off new zealand in 2008. everything that wasn't nailed down slid around out off control. 42 people were hurt, many with broken bones. the company said it was a rare occurrence that was fully investigated. then there was this cruise liner "oceanos" sinking off the coast of south africa in 1991 after

the ship adrift. all the p psengers were evacuated by south african rescsc helicopters before the ship went down. now back at port "anthem of the seas" passengers will get a full refund and 50% off of a future bookokg. it may not be enough for some. >> doesn't give you a lot of comfort when you're idling in the ocean for 12 or 15 hours with the wind and the waves. >> reporter: charlotte lipman's ther asher treated her to the cruise for her 10th birthday. not the caribbean vacation they had in mind but one she'll be telling her friends about for a long time. >> the waves were almost crashing onto our terrace and we were on the eighth floor. the room basically tilted that way. even if you weren't moving you automatically -- like your body like fell. >> reporter: "anthem of the seas" has a sold-out eight-day cruise departing for bahamas on saturday. royal caribbean tells us they're planning to set sail this weekend as scheduled.

in the new jersey. next, he terrorized the country for 18 years, evading capture by fbi and local authorities. you won't believe who finally turned in the unabomber. plus that family feud moment the internet can't stop laughing about. [thunder rumbling] [chattering]

the nissan regue. th the power and performance of our intuitive all-wheel drive. now get a $199 per month lease on the 2016 nissan rogue. my son and i used to watch the red carpet shows on tv now, i'm walking them. life is unpredictable being flake free isn't. because i have used head and shoulders for 20 years. used regularly, it removes up to 100% of flakes keeping you protected live flala free for life 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. nexiumuman take 24 hours. try cool mint zantac. no pill relieves heartburn faster. (vo) what's your dog food's first ingredient? corn? wheat? in purina one true instinct grain free, al chicken is alwaysys1. no corn, wheat or soy. support your active dog's whole body health

if you could see yououcough, it's just a cough. you'd see how often you cough all day and so would everyone else. new robitussin 12 hour delivers fast, powerful cough relief that lasts up to twelve hours. new robitussin 12 hour cough relief.

he was a feared and mysterious killer known simply as the unabomber. his bombing campaign killed three and injured more than 20 people. his calling card a manifesto railing against technologyyn the moderer world.

to his capture. tonight for the first time on television, we hear from the woman who turned him in. she sat down with me for "20/20 discovery id presents homicide. >> the computer went off this money at yale's computer science center -- >> reporter: the most wanted in america, the unabomber, a ghost targeting universities and airliners. thus the name. the unabomber. >> there's been almost as much money spentntn the unabomber investigation as all serial murderers put together. he's that important. >> reporter: but in the end his capture would also come down to this woman.n. speaking out t tonight in her first television interview. >> the longest fbi investigation in the history of our country. but how was it that you, a college professor, was the firstst to suspect ted kaczynski could be the unabomber?

began to release information. >> reporter: more on her in a moment. nearly 30 yes, there is ago there wasn't much informatioio for the f f to go on. that is until 1987 when computer store owner gary wright became the victim of the unabomber's 12th bomb. >> as i drove into the rear parking lot i noticed there was a piece of wood. i went over to pick it up. i bent down. and i put my hand on the very end of it. and immediately something happened. there was a big blast of pressure. and i was knocked about 20 feet backwards into the parking lot. >> what happened? >> whent went off there was about 200 pieces of shrapnel that went through my body at various points. >> reporter: just before wright arrived -- >> i found out my secretary had been looking out this window right here. and she saw somebody kneeling down, pulled something out of a bag, and set it on the ground. and they were looking face-to-face about four feet

>> repter: now investigators are able to deriviv the firir police sketches of the elusive killer, a miscellaneousoustached man. >> a white male with high school education, might appear to be a nice guy with no apparent predisposition to violence -- >> reporter: three bombs later it's the unabomber himself who gives the fbi more toork with by contacting the media and demands two newspaperss print a longng manuscript he's written or the killings will continue. >> as we know, in inn so many cases of serial killers, pride got goeth before the fall. >> reporter: the new york types and "washington post" published the manifesto. >> it is blackmail pure and simple to which the "times" and "post" acceced. were they justified in doing so? >> reporter: history might say yes. college professor linda patrick reads the information the fbi releases and thinks she

ideas from letters her husband david kaczynski and his family received from his brother ted. >> that must have been awful to have these suspicions that you were going to share with this man, who youou love -- >> yes. but it was really important to talk with dave about it. >> whehe she said,, i think maybe your brother's the unabomber. i thought, well -- this is not anything to worry about, ted's never been violent, i've never seen him violent. >> reporter: linda's suspipions keptgrowing. >> they had posted the first few pages of the manifesto on the screen. computer. in the lobby of the library. so dave went with me. and then as dave read the first page, i was sitting at his side and his jaw dropped. >> i thought i was going to read the first page of this, turn to linda and say, "i told you so."

sounded like my brother's voice. >> reporter: david's older brother ted had o had a promising future. he'd gone to harvard at 16, eaeaed a ph.d. in math at university of michigan. but it's when ted kaczynski as math proper soar at uc berkeley he gives up on pain stream society. he build himself a cabin in montana and retreats from the world. >> he began to write very hostile, angry, resentful letters to our parents. had a harar time understanding where the resentment came from. >> reporter: david and the family had long suspected ted suffered from some kind of mental illness. but until now, david says, they had been in denial. >> how long do you think he was challenged with mental illness? >> it's pretty clear that by the time he was a graduate student at the university of michigan, he was suffering from some pretty serious delusions. >> reporter: the family makes the wrenching decision to

>> thought about the families that were bombed. there was one in which the package arrived to the man's home and his little 2-year-old daughter was there. she was almost in the room when he opened the papaage. luckily she left and his wife left. and then he died. and there were others. so i spent those days thinking about those people. >> repepter: on april 3rd, 1996, a nine-man s.w.a.t. team apprehended ted kaczynski at his cabin in lincoln, montana. they find containers with bomb materials, notebooks containing almost 40,000 pages of writings. the typewriter on which he typed his manifesto. >> the fbi has arrested a man in lincoln, montana -- >> are you the unabomber? >> the three of us were sitting together, linda and myself and my moer, watching the arrt of my brother on tv. i've never seen a street person thatooked worse off than ted

his clothes were tattered. apparently he had not bathed in weeks or months. i still am haunted by the look on his face. >> reporter: kaczynski goes on trial in sacramento, california. january 1998. it's clear the key issue in the trjal would not be ted kaczynski's guilt but his sanity and whether he would be spared the death penalty. >> my major argument against the death penalty for my brother is the fact that he's diagnosed with a serious mental illness. paranoid schedulesizophrenia. >> i would like to say our reaction to today's plea agreement is one of deep relief. most important, my mother and i wish to reiterate to the surviving victims our deep sorrow and regret. to expressur wisho reach out to you in whatever way possible -- >> reporter: one of those david

>> i picked up the phone and i dialed the numberer and i hear a voice on the other end saying, you've reached the wright house at the wrong time. i wasn't prepared for that. i was like -- i mumbled, i'm david kaczynski, i think maybe you know who i am. i'd love to talk if you're open to it, i'll try calling back in a couple of days. >> first he just said, i want to call and apologize on behalf of my famimi. that was the first thing. i said, well, david, i have to tell you something. that everybody has people in their family they probably want to apologize for and it may not be at the same level. i knowoweople want to apologize for me and you really don't need to carry this. that's not your responsibility. >> what a gift. >> yeah. it was like a gift. >> reporter: and in ensuing years david and the man his brother tried to murder are crisscrossing the country speaking out against the death penalty, advocating instead for reconciliation, mercy, grace. >> i think on somee leveve

in ourselves, there is this hunger for reconciliation. that violence not be the last word. >> i don't know if linda understands how grateful i am to her. linda saved lives. she saved our family's honor and self-respect. and u uimately perhaps contririted to saving ted's life too. >> the series "20/20 homicide" on discovery id. steve harvey had his flub during miss universe -- >> i have to apologize. >> reporter: but tonight he's the one doing the ughing.

the bold nissan rogue,with intuitive all wheel drive. bebeuse winter needs a hero. now get a $199 per month lease on the 2016 nissan rogue. nissan. innovation that excites. shoulders don't just carry pads. they carry your fans' passions, hopes, and dreams and maybe, a chance at greatness...

finally tonight, steve harvey isn't in the best position to be throwing shade about performance flubs, just saying. onis game show one family's answers were so outrageous he couldn't help but laugh. and neither could the internet. >> tell me another way people say mother. >> mommy. >> mommy. >> reportete it's the "family feud" fumble gone viral. >> you got two strikes. >> reporter: ma, mommy, mama already taken. sheila comes up with this. >> what about -- mom-mee. >> you want mom-mee, not mommy? >> reporter: steve harvey might havevead fun with the answerr but it only got the patterson family

sheila explains on "good morning america." >> so basically my nerves got the best of my trying to come up with something else. >> reporter: the pattersons' full "family feud" episode airs february 23rd. >> y'yll crazy. >> reporter: here's hoping they had better luck with the other question. it was albert einstein who said, anyone who has never made a mistake has never tried anything new. thank you for watching abc news. "world news now" is coming up soon with overnight breaking news. tune into "good morning america" tomorrow. as always we're online on abcnews.com. good night, america. it seems today that all you see