we know. >> we send divers out, we did aerial searches. >> nothing? >> nothing. >> it is almost like a vanishing act, time is ticking here and there is no site of her. it is just an overwhelming feeling. >> what did that surveillance video show you? >> two individuals getting on this degree,. going into the water. >> the fact that nobody was found is very suspicious. >> it is heart wrenching every day, she is an honest and truthful friend, she has got a real lost for life. how can you give up on your friend? where on earth is she? >> >> it is andrea canning from dateline, can we talk to you? did you have anything to do with the disappearance of's arm? >> hello, welcome to dateline. -- was as spontaneous as she was fearless. so, friends were not surprised when the free spirit left home to sail the caribbean with a new boyfriend, then sarm vanished. as the coast guard searched for on white, investigators zeroed in on someone they believe held the key to her disappearance. but would he lead them to sarm? here is andrea canning with a siren song. >> the u.s. virgin islands of st. thomas, and st. john, earned the nickname americas paradise for their miles of white sandy beaches, and impossibly blue water. >> the sailing is best in the world, great for snorkeling, underwater activities. it is the easternmost point of the united states. it is the beautiful, tropical island. >> it is a truly a wish you were here destination. so breathtaking that it, is hard to imagine something tragic happening in this idyllic place. but, of course, it does. on march 8th, 2021, a beautiful former flight attendant moved here for love and her dream job. weeks later, the woman was a last for adventure disappeared without a trace. >> it is almost like a vanishing act. all her personal belongings are still on the boat, nobody saw anything. >> it is a mystery that made international headlines. for her friends back in england, the news was devastating. >> i just -- stop, stop. i was on the floor hyperventilating, i guess, i was just panicking. >> dateline travels to paradise to try to find out what happened to the woman named sarm heslop. >> can the helicopter see into the water? could it see a body from up there? >> and to track down the last person known to have seen her alive. do you have any idea where sarm it is? our story begins off the island of st. john, spring break, 2021. tourists or traveling again, every hotel was sold out. every sailboat booked. anchored just a short distance from short was a 47 foot luxury catamaran called sirens along. all quiet on a warm, starry march night when suddenly an unusual distress call came from the boat. >> our 9-1-1 dispatch got a call at approximately 2:35 a.m.. >> the call was made by the boat captain, ryan bane, he said his british girlfriend and first made, sarm heslop, was missing from the boat they had been living and working. on then, u.s. virgin islands police commissioner says officers rushed to the dog near where the vote was anchored. as they approached, ryan was in a dummy coming towards them. >> so he actually gives the boat to meet your people? >> yes, officers meet him on the dock and he explains that i went to sleep and, when i woke, she was nowhere to be found. >> ryan said that his vote alarm had broken him up. >> there was an anchor alarm that alerted that the vote had shifted for moved. >> does ryan have any idea where she could be or does he have a hunch or theory or anything? >> he simply said maybe she could have fallen off the boat. >> with time of the essence, the officers began searching for sarm in the dark waters of frank bay. >> they let the area up, looked around the area, did not see anything. >> did he express if they had fought or if she was upset about anything that may have led her to leave on her own? >> no, he did not provide any information of an argument or any type of this harmony. >> instead, brian told officers it wasn't an eventful night. that he and sarm had gone ashore around 6:30 for dinner. >> he identified that they had been to a restaurant at 4:20, at the center. >> a dive bar local -- popular with locals. it's a state at the restaurant for about an hour and a half. >> did he say if they had been drinking, anything that might have impaired her judgment? >> mr. bayne indicated that they were drinking but that his emphasis was that he went to sleep, he woke, and she was nowhere on the boat. >> after that brief interview, the police left without searching ryan's boat. officers say they told him to contact the coast guard, which we did later that morning. >> the coast guard sector command center, that is the search and area coordination center. >> lieutenant commander jan leases a teen sprung into action. >> they launched our 33 but small boat, they the knowledge to haul kept her and -- they began an urgent marine information broadcast. >> alerting the public to be on the lookout for a 41-year-old female who may have gone overboard. coast guard officers took us to the area where they searched. >> your team pulls up the siren song in a vote like this? >> exactly, the 33 footer. >> what happens when you approach sirens along? >> at that point they just pull up alongside, they go aboard. >> how is ryan bane reacting to the coast guard arriving? >> he is cooperative, he shows us all of her keys, phone, passport. they look in the cockpit, they look down the passageways. >> when someone's personal belongings are still on the boat and they are nowhere to be found, is that a really bad sign? >> we just take it as, there is somebody in the water and we began our search accordingly. >> lieutenant commanders team used something called drift analysis to help focus their search. >> with the good weather we can quickly cover a lot of the area, shoreline, the isolated islands over there. >> doesn't have to enter your mind as you're searching that there could have been a crime committed? >> at that point our focus is all search and rescue. >> after a full day of searching. >> we started at approximately 1:00 and searched until sunset. >> they also found nothing. where could she be? >> i am honestly not sure. >> the coast guard was puzzled. if sarm had drowned off the waters of st. john, they believe they would've found her body, a mystery in paradise was unfolding. where was sarm heslop? >> the search for sarm grows urgent as volunteers to take the helm, desperate to find her. coming up -- >> we start rounding up the troops, we're not giving up into we have some resolution. >> what do you think happened to sarm? >> i don't know. it's just really confusing as to where she is. >> do you have any hope that sarm is still alive? >> i try to. >> when dateline continues. n dateline continues for the chance at clear or almost clear skin. it's like the feeling of finding your back... is back. or finding psoriasis can't deny the splendor of these thighs. once-daily sotyktu is proven to get more people clearer skin than the leading pill. don't take if you're allergic to sotyktu; serious reactions can occur. sotyktu can lower your ability to fight infections including tb. serious infections, cancers including lymphoma, muscle problems, and changes in certain labs have occurred. tell your doctor if you have an infection, liver or kidney problems, high triglycerides, or had a vaccine or plan to. sotyktu is a tyk2 inhibitor. tyk2 is part of the jak family. it's not known if sotyktu has the same risks as jak inhibitors. find what plaque psoriasis has been hiding. ask your dermatologist about sotyktu for clearer skin. so clearly you. sotyktu. after advil: let's dive in! but...what about your back? 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>> no we had to suspend our search a rescue, but there were local eckfords. local volunteers like jeff jones, who runs a boat business he has extensive surgeon search and rescue. >> when you get the call about this incident what are you told about as far as what they know and what's happened? >> there is a woman who allegedly fell overboard, and has been reported missing, at this time that is all we know. so start rounding up the troops. >> jeff another volunteers grabbed their gear and high powered drones, and begin searching the waters where she was last seen. >> most likely would have washed into frank bay, which we did extensive dives. jeff also served another role he became the link to sarm family and friends. i did my best to keep them updated to let them know, like we want to keep this thing going until we have some resolution. >> two people desperately waiting for jeff's updates were vicky, percy and kate to disarm's best friends. they felt grateful for jeff and the other volunteers. >> the amount of people who are out snorkeling and diving looking for her, it is the generosity of strangers and it has been awesome >> what do you think happened disarm? >> i don't know it's just really confusing as to where she is. >> vicky has known her for years, they met working as flight attendants and vicky remembers all too well their first flight together. transporting a prisoner. >> oh, i was quite nervous by it, and he tried to get his hands out of the handcuffs, and i was like oh my god you see what he is doing, and she's like yeah i don't worry about it, she was not fazed by things. >> she was described as bold, fearless, and one of a kind woman. >> she wants to via house, that doesn't have children beautiful heart, and deep care for her friends and family. >> kate was a former roommate, and so she was not surprised when she stumbled into sailing. one sarm heslop of her friends invited her across the. atlantic ever the adventurer she could not resist. >> she grabbed it with both hands, she made sure that she was qualified to do it. she was >> brave and courageous, isn't she? so you sort of admire her. but you know, i think i was a bit worried in the sense that you know, you are traveling across the atlantic. >> it was at the end of that trip summarized in grenada, that she met ryan bain. >> i guess you don't really think about dating on the high seas. >> no i don't think you do. >> what do you say come over to my, boat or come over to your boat? >> they seem to hit it off which is great. >> based on his profile ryan bane he appeared to be that picture of success and swagger. the 44 year old former finance guy who traded in his suit and tie for shorts and flip-flops. in 2015 he began chartering his luxury catamaran to tourists in the caribbean. some tell vicky what she found most attractive about him was his personality. >> she liked her sense of humor, he made her laugh which is really important, she is a very very funny girl. >> in the beginning her friend say the relationship was nothing serious, they'd only been dating a while. she decided to go to malta where she had close friends. she left needed to get some work, they kept in contact. something >> was calling her back to him. >> yes, she just decided that you know what, this relationship is worth continuing. so decided to fly back out, and join him in the american virgin islands at that point. >> her friends say the timing was perfect sarm needed a job, and he invited her to come work on his boat. they had to do the things that she loved most sailing and cooking sarm even showing off her culinary skills on instagram. and ryan's dog hunter. >> she is a really big animal lover, she absolutely loves dogs. >> all she wanted to be with her new man, to her friends all seemed well. >> she looked happy into her photographs, and when we spoke she was really, really enjoying herself. it was like the ultimate outdoors. it was everything from previous relationships kind of piece together, to make this, what seems like a great, great life that she was starting. >> she'd only been living and working on siren song for about two weeks. her friends could not anticipate the darkness headed her way. >> do you have any hope that she is still alive? >> i try to. >> coming up, a crucial clue from a single security camera. >> it shows sarm heslop getting on a day knee, and going into the waters. >> you have no real confirmation that they ever made it to the vote. this is a real mystery. >> it is. >> when dateline continues. we we detect this: living with hiv, i learned that i can stay undetectable with fewer medicines. that's why i switched to dovato. dovato is a complete hiv treatment for some adults. no other complete hiv pill uses fewer medicines to help keep you undetectable than dovato. detect this: most hiv pills contain 3 or 4 medicines. dovato is as effective with just 2. if you have hepatitis b, don't stop dovato without talking to your doctor. don't take dovato if you're allergic to its ingredients or taking dofetilide. this can cause serious or life-threatening side effects. if you have a rash or allergic reaction symptoms, stop dovato and get medical help right away. serious or life-threatening lactic acid buildup and liver problems can occur. tell your doctor if you have kidney or liver problems or if you are pregnant, breastfeeding, or considering pregnancy. dovato may harm an unborn baby. most common side effects are headache, nausea, diarrhea, trouble sleeping, tiredness, and anxiety. detect this: i stay undetectable with fewer medicines. ask your doctor about switching to dovato. bladder leak underwear has one job. i just want to feel protected! especially for those sudden gush moments. when your keys are in the door and your body's like, “it's happening”! if you're worried about your protection, it's not the right protection. always discreet protects like no other. with double leak guards that help prevent gushes escaping from the sides. and a rapid dry core that locks in your heaviest gush quickly for up to zero leaks. and it contours, to everybody. now this, is protection! always discreet- the protection we deserve! 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(car engine revs) (engine accelerating) (texting clicks) (tires squeal) (glass shattering) (loose gravel clanking) the power goes out and we still have wifi to do our homework. and that's a good thing? great in my book! who are you? no power? no problem. introducing storm-ready wifi. now you can stay reliably connected through power outages with unlimited cellular data and up to 4 hours of battery back-up to keep you online. only from xfinity. home of the xfinity 10g network. andrea canning: the story of the british woman who vanished off a sailboat in the caribbean was making international news. the story of the british woman every day, a new article asked the same question, who vanished off the sailboat in the caribbean was making international news. every day, a new article asked the same question where is sarm heslop? >> the police had no answers. >> your officers are really looking at three scenarios. she willingly disappeared, there was a tragic accident, there was a crime. >> absolutely, those are the options. >> her friend mekhi was certain that sarm would not just take off without telling anyone. she felt it in her bones that something was tear billy wrong. she also does not believe that she drowned. >> she is a good swimmer, she had to dive in assuming phone or close, swim across it to get through her training. because of covid, the rest of sarm's in england were unable to travel to help look for her. >> to some extent you feel guilty, because you cannot do anything. we don't want her to think that we are not doing anything. >> in fact, some's friends were doing a lot. >> in the position of the moment, we need to maintain that. several >> of them hailed daily zoom meetings, brainstorming ways to keep the media and police focused on finding their friend. >> she would not leave her possessions. >> they appeared on british and american tv. >> we won't give up on you. >> and shared videos on social media, pleading for help. >> we won't give up. >> your group has been a force though, keeping it on social media, connecting with searchers. i mean, really keeping the story alive. >> we've got to get it out there, we can't sit on it and not do anything. >> meanwhile the police were feeling the pressure. the commissioner says his team was doing everything it could to find sarm. >> we spared no resources, we sent divers out, canine, we did ambulatory searches. we did aerial searches. we put flyers out. , and nothing. >> and nothing. >> as the days take by with no sign of sarm, the police requested outside help. >> the fbi got involved in this case? >> the fbi was able to assist in trying to locate any type of camera. >> they found one security camera pointed right at the spot where sarm had left the island that night. >> it shows two individuals mr. bane and sarm heslop, getting in a dinghy and taking off in the dinghy. and going off into the waters of the bay. >> and do you lose them from there? >> so you have no confirmation that they made it to the boat? >> that is correct. >> british police also got involved. >> we sent text messages to the police here in the uk. >> they look for her personal belongings, and searc