I remember one detective saying to me, you just have to wait till because again. But the trail grew cold. The file forgotten, until decades later, someone dusted it off. The whole goal of these cases was to try and see the thing thats hiding in plain sight. There were clues. A mysterious weapon made of wire, the wedding invitation, a midnight sale to know where. Where they enough to catch a killer . I was 100 percent confident that it was our guy. Now, the showdown a determined prosecutor against a famed defense lawyer, who helped set ogs in free. Im on the right side. After 35 years, it was finally time for justice. Its been a long journey. He was alone in his makeshift workshop. Had to be, for what he intended. Carefully he two of them, just a few inches each, sanded them down and drilled a hole in each one. And a piece of wire between them. Too thin, he doubled it for strength. His perfect weapon for his perfect crime. Warm outside in the brilliant sunshine, it was the summer of 1979. Aides hadnt happened to us yet, nor the internet, nor cellphones, nor a way to read dna. All those things were still years away. Everyone worried about Three Mile Island that summer. The arabian Hostage Crisis was still months away. And in Southern California, in the summer of 79, in the beach town that cling to the coast near l. A. , twentysomethings came from all over to work, play, practice on art as old as human. And as new as last night. Mating. The area had a ski area, snow skiing, water skiing, volleyball, all sorts of outdoor activities. Richard frank was 32 that summer, published an independent Community News letter. But on weekends . We do bashir ups, guys are trying to meet girls and hit on people. It was a lot of fun. [laughs] reporter one woman in particular caught richards eye. We had a thing called snow queen and she was running for snow queen. She didnt win but she was a very outgoing, gregarious almost tomboy kind of person, attractive. Her name was lynn knight, a neonatal nurse, who like so many here came from somewhere else. In her place, a pretty place called stratford, not far from toronto, canada. She was a beautiful person. This is her sister donna. She was jim carrey before jim carrey. She did the goofy stuff, everywhere people would be in stitches. Nurses were in great demand in the seventies. Lynn could have gone anywhere or stayed close to home, like her sister donna, also a nurse, chose to do. I had such difficulty when she was going to go to california. I did not want her to go. But she did. Moved into a tiny studio dip apartment tacked on to someone s garage in torrents. And she signed up with a hospital called Little Company of mary, where she went to work with the smallest patients of all, the most vulnerable, premature babies. Those were her babies, she took her job very seriously. She would arrive early, do double shifts. Reporter worked hard and played hard. She would work midnight shift, then sleep for three or four hours, and then she begun and scuba diving, marathon running, you name it. Lynn was the most incredible tomboy ever. [laughs] one more thing, she loved the company of men. Many of them, perhaps most, were just friends, some more than that. A number of them were ball players or skiers or whatever so she had a lot of male friends. Because she was competitive in racquetball. So they were more friends than romantic partners. She hung out really with, professionals. [laughs] and goodlooking professionals and then of course she met Richard Frank. We hit it off pretty quickly, we dated pretty heavily for couple of months. Could be confusing for richard. Not many young women with as many male friends as the crowd that hovered around liz. Her sweethearts, as she called them. One of the things was trying to find out where i fit in her life. But with richard, i it was romance, was she perhaps a little too intense . Which are the perhaps she was. It was too much in the beginning. Even her sister said that. So she was going a little too fast, is that it . Yeah, yeah. But love has a way of circling back, by the end of that summer of 1979, they ran into each other again. On a waterskiing trip. I saw her and we started talking. And we decided, you know, okay, lets go out. And for me, it was like, is this The One That Got Away . It was august 29th, a warm summer evening outside lynns little Studio Apartment outside in the avenue. Lynn was cooking chinese food. She had company, a male friend who had come for dinner, a male friend who is not Richard Frank. No, this was an exboyfriend names Joe Giarrusso. After dinner, lynn and joe drink some wine, talked about what, we cannot know. And at 11 30 pm or so, he left, and lynn went to bed. Early shift at the hospital. Wednesday ticked into thursday, the silence. Thats when the neighbors heard it, a high pitched scream. And it came from lynn knights little apartment. Coming up my whole world crashed in. 35 years later, the scene in that apartment would leave a hardened Homicide Detective in tears. Youll have to excuse me. Whendatelinecontinues. Are you tired of clean clothes that just dont smell clean . Downy unstopables inwash Scent Boosters keep your laundry smelling fresh waaaay longer than detergent alone. If you want laundry to smell fresh for weeks, make sure you have Downy Unstopables inwash Scent Boosters. Dupixent helps you du more with less asthma. And can help you breathe better in as little as 2 weeks. Dupixent is an addon treatment for specific types of moderatetosevere asthma thats not for sudden breathing problems. Dupixent can cause allergic reactions that can be severe. Get help right away if you have rash, chest pain, worsening shortness of breath, tingling or numbness in your limbs. 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And its all right here. Streaming was never this easy, you know. This is the way. You really went all out didnt you . Um, its called commitment. Could you turn down the volume . Here, you can try. Get way more into what your into when you stream on the xfinity 10g network. The scream was almost beyond human shrill, harrowing, echoing through the quiet neighborhood on anza avenue. The man next door called 911. Keith morrison voiceover when Torrance Police arrived minutes later, the little apartment was quiet again. And lynne knight was dead, lying on her bed in a pool of blood. Detective emillo paerels had never seen anything quite like it. Just terrible, bloody and i cant find other words to describe it other than horrific. Lead Detective Gary Hilton, Keith Morrison voiceover so horrific, said lead Detective Gary Hilton, that even now, 35 years later, talking about it was difficult. That even now, talking about it, 35 years later, is difficult. Youll have to excuse me. Yeah. Out of all the ones i worked, it was toughest. No wonder, the victim had been stabbed more than a dozen times. Pointing toward what . Rage, the desire to see this particular individual dead. But there was another set of wounds that the detectives couldnt figure out, deep cuts on her neck, which may have explained the horrifying sound that woke up lynns neighbors. How would you describe that screaming . A squeal. A loud squeal. After he heard that, said a neighbor, he caught a glimpse of the man who may have been the killer. A slender young man with dark, curly hair. Not much to go on. He looked at the back of the suspect as he ran down the driveway, into the street. Carrying something . A small satchel. There couldnt have been much inside that little black bag, because very little was taken from lynns apartment. Only her wallet, keys and one particular piece of jewelry. She had a necklace on with a pendant. At the scene we found a broken clasp and the pendant. But no chain . No chain. But the killer left something of his own behind, something detectives didnt notice. Until the coroner moved lynns body. It appeared to be a homemade device used to strangle the victim. It was cutoff portions of what appeared to be a broom, or a mop handle. And a piece of wire. Going between the two . Yes. So there was some planning involved . A great deal of planning. Its a homemade garrote. A garrote . Detective gary hilton had not seen one of those since he served in vietnam. And certainly never at the crime scene. But now he understood why lynn s neck was cut so deeply. Did he actually put it around her neck . Yes. Overkill, and that would be an understatement. Now for what was most difficult, making the phone call to lynns family, here in little stratford, ontario. A family which, until that moment, had assumed that their precocious daughter was perfectly safe, Saving Babies in los angeles. Lynns sister, donna, was just getting offer shift in toronto. I got a call from my brother in law, he was gulping for air, and yelping practically out of his skin. He said that i hate to have to tell you, but lynn has been stabbed to death. And it was like. It was such a sad day. Its not something you would expect to hear, no matter what. No. It was like my whole world crashed in and that was it. It was completely life altering. My life has never, ever been the same since. Donna was 26, only recently out of nursing school. 35 years later, the pain lingers. How do you take a thing like that in . You dont, its totally out of body. You go into shock. Its complete shock. Its like, also, a great big hole in your chest. Who would have done such a thing to lynne, the kind and compassionate nurse . Not an enemy in the world . But then, before dawn, a concrete lead. Police saw someone suspicious running in lynnes neighborhood, the same guy the neighbor saw . The suspect was seen in this location, carrying a black bag. They picked him up, and by the look of it, with blood, literally, on his hands. Coming up a clue found in the strangest place. I saw this wedding invitation that was crumpled up in the trash. Reporter when dateline continues. Sometimes cops get lucky. This was recorded in the predawn hours of august 30th, 1979. Just after the brutal murder of lynne knight. 23, possible suspect, dark curly hair, last seen running eastbound. A Patrol Unit Detained and arrested an individual who was acting strangely nearby. It looked like he had blood on him . He did. His name was Girardeau Juarez and he appeared to match the description of the man running away from lynnes apartment. They had to finish processing the crime scene at the apartment. I saw these blood smears in the house that looked like it was caused by gloves. And there was no dna of course . Back then we didnt have dna. All the blood we found was consistent with the victim. Remember, this was 1979, years before the advent of dna. Fingerprints were the Gold Standard then. But the other prints could not be traced back to the murder. And that apparent Murder Weapon . The garrote . It was clean of prints. So there was planning. A lot of it. And immense brutality. But burglary . No, only small personal items were taken. But detectives capt. Emilio paerels and gary hilton were certain it could mean one thing. The suspect knew the victim. She had been targeted, i say that because the location was quite removed from the street, not a place where there were passers by. Someone would have to know to go back there in order to reach the door. Reporter so, the detectives went back to the torrance pd to talk to the possible suspect Gerardo Juarez. He insisted he didnt know lynne and had never even seen her. Had no reason to kill her. A search of his home turned up nothing. And the blood on his hands . It proved not to be blood. What was it . It could have been paint, dirt, mud. We couldnt tie him to the crime scene. Reporter so much for that break, Gerardo Juarez was released and for the moment, at least, they were nowhere. A few days after the murder, a small funeral was held in stratford, ontario. They were planning to have a wedding. Donnas wedding. Lynne was supposed to be alive, as her sisters Maid Of Honor. They dressed her in her Maid Of Honor dress. I remember feeling such anger at whoever did that to my sister. And my parents. Watching my parents grieve. What have they done to my baby . Reporter the coroners report answered some questions. An autopsy determined that the garrote did not kill lynne. She died of stab wounds. The report revealed Something Else. Traces of two semen samples. Again, dna testing was not available back then. So they could not attach identities to the semen samples. So you began to talk to thats where we started the circle of friends, acquaintances, her job. Reporter including all her current and former boyfriends. Racquetball partners, ski buddies, work colleagues. We needed the time to develop some background on all the players, so that we would have some idea what questions to ask. Anyone of whom could have been the one. Anyone. Reporter mind you, Richard Frank had already called the police to offer his help and was pretty quickly eliminated. He had an alibi. But how about that old flame, Joe Giarrusso . He was, without a doubt, in lynnes apartment just hours before he she was killed. Joe told the detectives that lynne was fine when he left at midnight. Did it make you think that he might be a suspect . Oh, yeah. He was somebody we had to investigate immediately. Reporter so they brought joe in for questioning. He seemed forthcoming. And if he wasnt deeply upset, he was putting on a good act. Still, the detectives noticed something strange on his fingers. Several cuts. He insisted they happened at work, in a lab, where he dropped a test tube. He would never hurt lynne, he told them. Had no reason for jealous rage. He was in a relationship with another woman and was still visiting our victim. And apparently were friends. Reporter by the time lynne was murdered, said joe, he was in bed with his girlfriend. What to make of the story . Until his alibi could be checked out, Joe Giarrusso remained the only possible suspect. By this time, when the investigation had been underway for almost two weeks, the Knight Family flew to l. A. To collect lynnes personal belongings. They kept her mementos, even her financial records. Which said a lot about lynne. The sum of her bank was all of 18. Because she paid for Scuba Diving Lessons and you name it, she just did it, she was packing in every activity she could possibly pack in. So, she really lived a lot in those 28 years. But there was one thing donna didnt find. Something quite special to both sisters. The invitation to her upcoming wedding. And then Detective Hilton remembered, he spotted it, in a wastebasket. Although, he didnt collect it as evidence. I saw this wedding invitation. It was crumpled up. Didnt seem like a big deal at the time . No, just a wedding invitation. Had her name on it and it was crumpled up in the trash. Thats when we went, lynne wouldnt do that. My grandparents picture was right there, their wedding pictures. So we knew something wasnt right. And also, if it was crumpled up, who else would have the motive to crumple it up . Someone who was ticked off that they werent coming to this wedding. Reporter ticked off enough to actually kill lynne knight . Who was it who was left off the guest list . Coming up, an old boyfriend tells a startling story. Was it also a valuable clue . Its almost surreal knowing the incident happened and maybe it related to the crime. When dateline continues. michael copd is harder on the folks around you, i think. My wife smoked, and she quit. 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