in fact, it's designed not to attract attention. 10 amistad is very nondescript for reasons. it's a research facility. so, there are all types of highly confidential multi-million dollar research that is done from foundations and organizations from throughout the world. narrator: one of the amistad researchers was annie le, a 24-year-old doctoral student of great ambition and brain power. strollo: she didn't go out much. she had a very strict routine of going to work at the lab, her studies, and back home. [ beeps ] narrator: on the morning of tuesday, september 8, 2009, annie followed her usual routine. the building where she worked required people to log in using electronic keycard. her movement, after going into the building,

she went into her lab, which was g13, >> keycard for movement after going into the buildings, went into her lab, which was g 13, and she logged in there a little after ten in the morning at 11:00 that night. and he's roommate cold police any hadn't come home. >> people more discerning to this roommate. was that any never call she would always hear from andy a couple of times throughout the day and she never did >> normally, police are slow to move on missing persons cases. most people turn up within a day or two but any was known for being so reliable that in her case police started right away. >> the nervousness about the community was very real from the president of the university all the way down to the students with her wedding, just five days away. police thought and he might be a runaway bride. but this theory was quickly discarded >> they actually started to

look to see what any lays credit card activity was and try to see if she just took off and that was not the case. there was no credit card activity, own activity, or anything from any life in fact, her purse and her cell phone, we're still in her office, can take anything water. >> that was a big issue. people just don't leave that type of stuff, find and >> everyone who knew any said she was excited about her upcoming wedding she actually already started to sign or future married name to certain things >> investigators now went frame by frame through the hundreds of hours of security video from in and around the ama start building ten almost dod has 70 or so surveillance cameras covering every entrance and exit to the building. so you don't get in or out without being captured on camera >> we can see any light coming into the building and she was wearing a brown necklace. she had brown skirt and a blouse on

far as we know, she never left the building after going into it on september 8 >> days passed. and there was still no sign investigators had to consider the possibility that someone had harmed any lay. she was so small less than five feet and under 100 pounds the police believed an attacker might have been able to kill her and get her body out of the building by using one of the large garbage receptacles in ten amistad dumpsters were checked investigators went to the door and went through all the trash to see if there was any evidence of any lag and none was found. >> all investigators had was this image and then it any looked perfectly happy perfectly healthy? just like it was any other day except of course, that no one could find her but number when i said when

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science, better results how solomon in new york cnn yale university >> and the city of new haven were desperate for answers after graduate student, any lay, seemingly vanished from campus in september of 2009, i've been in congress patients with annie lee's family all of us who are parents can only imagine what they are going through with no logical explanation for where any had gone investigators turn to a darker theory about what might have happened to her all right >> everybody is a suspect in all the cases. everybody's a suspect. loved ones, friends, last person with them you gotta keep an open mind >> detectives questioned her husband to be jonathan would dusky, a student in new york city about 90 minutes from yale the had a solid alibi. >> there was no reason to

believe that jonathan was at all involved in this >> then on sunday, five days after any lay disappeared detectives were alerted to a basement bathroom in the ten ama style building austin, i smelled a weird smell and i stood there and i looked and i went, that's decomp and i'm like what's going on here behind a >> metal wall panel about 13 inches across investigators found any lays body. she'd been sexually assaulted and stuff behind the wall a broken jaw and collarbone indicated a crime of extraordinary violence any was still wearing surgical gloves indicating she had been working when attacked and was likely caught unaware no murder weapon was recovered. it appeared her killer had used his bare hands a possible indication of a spontaneous attack. >> the corner said the cause of death was strangulation

>> the yale community and the country at large were shocked by the uncommon violence of this murder and even more tragic end. his body was found on what would have been her wedding day. >> what could possibly be worse than having her body found on the day she was to be married >> the pressure to find who did this and how it could have happened on a campus with such a large security presence was immense. >> the fbi was involved in new haven, police was involved, the state police was involved in the yale police force for all involved >> there's a meeting probably with 40, 50 detectives. everybody's in that one room just trying to figure out what we have. >> dozens of items found with the body were sent to forensic analysts one of those items didn't seem to fit with the other evidence found underneath annie lay in that wall was a green pet and that was very

important to this vast >> dna tests were done on any clothing and the green as well as in the area where and his body was located? in a startling development dna from two different menn was recovered from the area behind the wall. both dna samples were entered into codis. the national dna database in a crime, this brutal, it was likely and his killer had been violent before, and that his dna would be in the system sure enough, analysts got hit for dna profile, came back and it came back to a convicted felon. >> his name was quran robinson, and he was convicted in 2001 on drug charges now, investigators were sure they had a positive lead on a suspect until the background check on robinson came in and turned out that

the, person who was the convicted felon had worked building a building and then he was killed, shot in a bar >> sometime before any light had gone missing, a dead end and even worse, the other dna profile turned up no matches in the codis database >> as the >> investigators used video surveillance to check every person who went in and out of the ama start building. they turn to yet another aspect of yields security that might reveal and his killer employee key cards. those cards kept track of everyone's movements in the building at all times. >> the key card system is something that is done to secure the research that's being done in rooms who has access to it? and who goes in >> that information can be used to track people's activity over weeks even months. and the investigation showed that one person's activity underwent a

big change, right about the time any lay went missing when we were looking at who may have gained access, we saw one person kept going into annie's research room utilizing his key card was the last person that swiped into the lab that i'm going seen it? >> old spice gentleman super hydration, body wash. and now lance, 24/7 moisture rotation with vitamin b3 are you and all the old spice >> if you max out of your ira contributions for 2023 by april 15th and for 2024, you get $405 in match >> roger, >> that robin hood goal >> get you the biggest match of any ira on the market? >> my hair is thinning all around my hairline

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off. >> but who had killed her. and why >> investigators get into cert, including the one where annie would do her experiments. narrator: keycard records showed that room, a lab known as g13, was annie's last-known location, and some potentially interesting things were turning up there. another student tipped off a yale police officer that she had seen what she thought was blood on a box of wipes on a cart, and it turned out that that was indeed blood. there would be no reason for blood to be in the research room. narrator: while this blood was being tested, a police officer was posted to guard the room, which technically was not yet a crime scene. the lab was not closed down when annie went missing. multi-million dollar research is being conducted in that facility, and there was no reason to close it down.

narrator: but the police presence didn't stop a lab worker named raymond clark from attempting to handle the bloodstained box of wipes, a potential piece of evidence. raymond clark entered the room, and he walked over near the cart, made some small talk with the officer, and then moved this bloody towel dispenser to a different part of the cart where the blood wouldn't be as obvious. narrator: raymond clark was a 24-year-old lab technician. like annie, he was engaged to be married. altimari: he was not a graduate student. he was a yale employee. he basically took care of the animals, cleaned up after them, took care of them, in fact. so, he would've had access to every lab. narrator: but clark's past was not without some red flags for investigators. one of ray's former girlfriends had actually reported domestic violence. so, there was a side of raymond clark

that was not told to us up until we started digging. narrator: keycard activity showed clark was in the g13 lab the same time as annie, and they were alone. raymond clark entered that room and stayed in that room for approximately 46 minutes. narrator: there was nothing particularly unusual about this, but since it appeared clark might have been the last person to see annie alive, he was brought in for questioning. raymond clark was very cooperative in the process. [ fire alarm sounding ] narrator: but now investigators were taking a closer look at raymond clark. and in the security footage, they found something haunting on the day annie was killed. after the fire alarm, when every employee of the amistad building was evacuated, clark's behavior seemed highly suspicious. we actually saw ray clark exit the building,

go across the street, and sit on a wall, and he looked distraught. he actually was sitting there and put his head down on his hands, and it's all captured on video. his face is actually in his hands and he's kneeling forward, and he actually looks like he almost passes out and falls into the street. so, he's definitely under a lot of stress in that video. narrator: but what was raymond clark stressed out about? and was it a coincidence or something worse that he was acting this way just after annie le was murdered? ♪

questioned about annie le,

he said he had no idea what happened to her and that he and annie were coworkers, nothing more. but on the day annie was killed, his keycard showed him moving a lot between annie's last known location, a lab called g13, and a seldom-used storage area called g22 just down the hall. detective insalaco had become convinced that the g22 storage room would connect raymond clark to what happened to annie le. i said, "alright, here's what we're gonna do. we're gonna turn off the lights, we're all gonna get down real low to the ground, and we're gonna use our flashlight. i'm gonna side-light the floor." narrator: on the floor of the storage room was the usual dust and debris, but there was also something else. i immediately saw a brown bead with a hole in it. narrator: why was this important? because annie was wearing a beaded necklace

the last time she was seen alive, and the bead was found in a room raymond clark had gone in and out of 11 times, and annie's keycard showed she had never swiped into this room herself. so finding a bead on the floor was huge. narrator: then, above the ceiling tiles near the storage room, investigators made more ominous findings. they found a sock with blood on it and a glove in a ceiling panel that they also sent to get tested for dna. this was later found to have annie's blood and dna from raymond clark. more incriminating evidence was found in a nearby laundry bag that had never been searched. when i dumped it out, i automatically saw blue pair of sweatpants. i saw dark dried blood on those pants, and i just looked at it and i went, "there's his pants."

narrator: and those pants contained a mixture of annie's blood and semen later matched by dna to raymond clark. even the pen, which had intrigued investigators ever since annie's body was found, implicated clark. that pen really started to connect things together for us. raymond clark habitually signed in and out of laboratory logbooks with a green pen. but in the middle of the day, just about the time annie disappeared, he switched to a black pen. detectives believe raymond clark dropped the pen by mistake as he stuffed annie le's body behind the bathroom wall. dadio: all of us that worked on the case were 100% confident that raymond clark was the person that murdered annie le. narrator: further proof came from a physical check of clark. it showed he had recently been in a violent altercation.

he had minor cuts on his head and face. dadio: you want to know what compels somebody to violently attack a coworker with no provocation. narrator: to this day, no one knows, and raymond clark isn't talking. he was a foot taller than annie and more than twice her weight. prosecutors believe this was an unplanned attack and that she didn't stand a chance. however it started, the evidence is clear. raymond clark strangled and sexually assaulted annie in the g13 lab. during this altercation, blood, later matched to her, landed on objects in the lab, including the box of wipes that raymond clark later tried to hide. in an attempt to cover up the crime, investigators theorized he may have used the large rolling tables in the building to move annie's body to a more isolated area --

the storage lab known as g22. his keycard showed a flurry of activity between annie's lab and that storage area just after annie's keycard activity stopped. his clothes with his dna were covered with her blood and were later found in a laundry bag. he was able to get annie to a nearby bathroom and stuffed her body behind the wall, where he dropped his green pen covered with his dna. raymond clark was able to hide annie's body, at least for a while, but he couldn't hide the evidence that tied him to her murder. altimari: it was a woman that had a lot to live for, you know? she was about to get married, she was clearly a brilliant graduate student. who knows what she would've gone on to study or become, and her life was cut short. it was a senseless murder.

narrator: in march of 2011, raymond clark pled guilty to first-degree murder and sexual assault. he was sentenced to a minimum of 44 years in prison. but one question, perhaps the biggest of all, remains unanswered to this day. the "why?" his side of what had happened, and the "why?" stollo: the state's case was that he sexually assaulted her and then killed her to cover up that crime. narrator: investigators describe annie's murder as one of the most bizarre they've ever encountered, and they're grateful for the science that finally revealed what happened to her. stollo: forensic evidence was very important. it was what made the case. it allowed a quick suspect to be developed, it allowed a quick arrest to be made, and it made an incredibly strong case for the state. dadio: annie would've changed the world with her research

and for what she wanted to do to make the world a better place. ♪ narrator: up next, a suitcase in the water holds a gruesome surprise. and when he looked inside, they found two human legs. the torso contained the arms, hands, and head. narrator: this victim will be nearly impossible to identify. his face had been decomposed while it was sitting out in the water. narrator: the killer appeared to have left no trace behind. sometimes the lack of evidence is evidence. narrator: could microscopic clues reveal the killer's identity? ♪ ♪ in the late spring of 2004,

the tourist season in virginia's chesapeake bay did not get off to an auspicious start. serrano: the story started when a family out boating in the chesapeake bay found a suitcase floating on the water. they brought it up onto the deck, thinking that it was buried treasure. the family opened it up and they found two human legs inside the suitcase. narrator: the legs, wrapped in black plastic bags, were from an adult male. news of this gruesome discovery spread quickly throughout the area. miller: that's not a crime that's typical, to have somebody dismembered and thrown at sea like that. obviously, it's foul play. this is not an accident. narrator: the community wanted answers, but six days later, all they got was more questions. on the shore of an island next to the chesapeake bay bridge and tunnel, another suitcase was found. dunton: opening up the suitcase, there were more black trash bags similar to the first one.