Welcome to dateline. Diana lovejoy and her husband were living the california dream. Both were smart, outdoorsy types and the couple i just welcomed a beautiful baby boy. Then there tail took a turn, not toward happily ever after, but somewhere much darker. A call from a stranger would send one of them down an isolated road to retrieve a mysterious package. What was behind the secret . And who would set it up . Here is Andrea Cannon with the night of the new men. The Lunar Cycle begins anew. Some look at a new moon as a time of rebirth. A fresh start. If only the people we trust here on earth were as dependable as the night sky. Carlsbad, california. And Affluent Seaside Community in northern san diego county. Tourist haven, known for his speeches, surfing and breathtaking views. This paradise became home to a woman named Diana Lovejoy. She is really funny and silly and smart. And really easy to talk to. Reporter sarah became fast friends with diana when they met in the six straight. Throughout High School we would write these alaris notes to Each Other. Still paying attention in class. Reporter of course. We would challenge Each Other like to write the first sentence of the worst romance novel. Reporter she said diana had a true gift for creative writing. As well as music. Something sarah come in a professional bassoonist know something about. She is a fantastic Piano Player from an early age. Reporter you shared a love of music. Yes. We were in Marching Band together and it was really fun. She had a schedule and she would wake up and she would do a reading. Reporter jennifer was dianas college roommate. She was extremely disciplined. Reporter and she was passionate about staying fit. It was going for a walk, taking a hike, getting on her bike, going for a swim. Reporter dianas healthy lifestyle and good looks were hard to miss. It always seemed like guys always really, really liked her. She was not trying to attract attention but she was one of those people that people tend to notice her. Reporter very pretty. Super pretty. And shes got yet. I think it was the complete package about diana. Smart. Gorgeous. Sweet and caring. Reporter set for College Diana went to work in the Tech Industry and ramped up her fitness routine. She competed in several triathlons and she also was a personal fitness coach. Reporter eventually, single, focused, diana met someone who also loved Bike Riding and soaking up the outdoors. A Software Engineer named Greg Mulvihill. He was gracious and very sweet. And very much like her. Reporter after two years of dating, Diana And Greg tied the knot in a number of 2007. They seemed like the right fit and she seemed really, really happy. Reporter the couple was eager to start a family. But that did not come easy. It did not. Reporter diana suffered multiple miscarriages and then had a difficult, high risk pregnancy. Which made september 2012, all the more special when diana gave birth to a healthy baby boy. That must have been an incredible day for her. To know that that baby was born. Yeah. Reporter set last, diana had her happy family. But that would not last long. By the time The Sun turned two, the marriage was falling apart. Diana kicked greg out of the house and got a Restraining Order against him. In court documents, diana alleged that greg said he wished heard dead. That he sexually molested her in her sleep, and she suspected he also listed their son. Greg denied all of dianas allegations and fired back and said diana had verbally and physically berated, attacked and belittled him over the last several years. Things were getting ugly. Remakes greg filed for divorce in august of 2014. And the couple fought bitterly over custody of their son. First, greg was only allowed to provide just visits but after numerous evaluations by therapists and law enforcement, courts found no evidence of abuse and ultimately awarded greg 5050 custody with diana. But diana was scared for herself and her son. If you that ultimately led her here, a shooting range. I was surprised that when she was taking lessons and marksmanship, i was like, this is more serious than i thought. She is concerned about her safety in a really, really real way. Reporter set the range from it seemed diana met just the man to. A former marine, skilled in selfdefense. Someone you might know also. From dateline. Coming up. I have always been very protective person. Reporter we first met him when he helped rescue a woman from danger. This guy sounds like he was actually looking out for you a little bit. Yeah. He helped me so much. Reporter but when he met Diana Lovejoy, something changed. She would text him at all different times and i did not like that. 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Its for people 45 at average risk, not high risk. False positive and negative results may occur. Ask your provider for cologuard. I did it my way. When Diana Lovejoy decided to take shooting lessons for selfdefense, she went to a range called iron sights. That is where she met a man with just the Expertise And Attitude she needed. I hate police. Reporter from an early age, he was passionate about protecting other people. I used to protect my friends On The Way Home from school. We had a bully that tried and tried to start fights with us and then i found out that a nicely applied on walk would get that only to kiss the street. And we did not have to run from him anymore. Reporter when he up, weldon enlisted in the marine corps. After leaving the service he worked as a firearms instructor. We met weldon back in 2013. When we covered the story of another woman he met at the shooting range. A customer walked in and i could tell something was wrong with her. I cannot tell exactly what but i could read that she was under some kind of stress. Reporter her name was Crystal Harris. He said can i help you. I said, i need to buy a gun. And i said it is not just for putting it away. My life is in danger. And it is from my husband and he was like, well. Reporter crystal, a mother of two young sunset that i said that her husband was abusive and wanted to buy a gun for protection. At that point i asked, are you prepared to kill him, and because that is a very will possibility. Your life from your Sons Life or your life, you have to make that decision. After a few moments she said, yes, if i have to. Reporter weldon to crystal under his wing and taught her to defend herself, even in stressful situations. This guy sounds like he was actually looking out for you a little bit. Somebody was in the business of saving lives and a warrior and a hero and that type of mentality. He wanted to help me. Reporter at home, crystal also helped herself. Used a Mini Cassette Recorder to gather evidence against her husband. When i crystal captured something horrible. She said it was audio of her husband sexually assaulting her. She walked in and she was visibly shaken. I knew something had happened. Reporter crystal played a bit of the tape for weldon. I have always been a very protective person. If you are a friend or family, i will do anything for you. I really wanted to go and kill him. Reporter crystal later called police and had her husband arrested. When he made bail, she called weldon. Who came to her house and helped Crystal Figure out the safest places to hide if her husband returned. I checked out the entire House Top to bottom. Told her some defensible spaces. Reporter crystal never did need to use from the gun, her husband was convicted of a forcible sexual crime and spent five years behind bars. But she was grateful for the sense of Empowerment And Protection Weldon Mcdavid gave her. He helped me so much. Reporter it is an unlikely friendship. Right, if i needed him, if i was worried about something or whatever, i could just call him. Reporter crystal embarked on her new life, without her husband. And weldon moved on also. A few years after befriending crystal, weldon found romance when he met a woman named leah. I have decided to learn how to shoot. And buy a firearm and learn how to use it. I was tired of feeling honorable , as a woman. And being scared of noises at night. Reporter she Said Weldon did not make a huge first impression when you rank upper purchases at the shooting range. But soon she realized, he was interested in i was not at first. And he won me over. Reporter how did he do that . He is very witty and has very good intelligence and humor. And a really engaging personality. Reporter weldon told her about his work with Crystal Harris. It was consistent with what i heard about different people that he had come alongside and help them feel more confident and safe. Reporter just like crystal before her, leah felt empowered around weldon. He is strong and i enjoyed his strength and i felt safe around him. Reporter on september 20th, 2014, leah became misses mcdavid. Listed two years later, she gave birth to their son. And somewhere, weldon told her about another woman he was helping out at the range. Woman named, Diana Lovejoy. He told me about her husband and she was afraid of him and they were going through a divorce. Reporter once again, it seemed weldon had assumed the role of protector. This time in dianas life. But leah thought something did not seem quite right. She would text him at all different times about things and i did not like that. I did not think was professional. And we disagreed about him communicating with her. And i think, he saw the need of somebody both herself and even more so a child, who could not protect himself. And felt like he needed to help. Reporter Something Weldon had done all his life. Leah could understand that. What she could not understand, was what came next. A sniper waiting in the dark. But he was the target . Coming up. There hearing multiple bullets, multiple rounds passing their head. To the from the shooter . No. Vanished. Reporter when dateline continues. Late on a moonless night, on september 1st, 2016. The man on the line described a scene that this does not happen in the affluent community of carlsbad, california. Multiple gunshots fired, and apparent sniper on the loose. I am at home and i am sleeping. Reporter Carlsbad Detective Sergeant was on call that night. It is all hands on deck and we are calling out just about every detective to come in. Reporter she learned the 911 call there was a man named jason and he was calling about his coworker. Diana lovejoys husband, Greg Mulvihill. He said his fred friend Greg Mulvihill was shot and needed assistance immediately. Reporter she learned when the first officer got the scene , he found greg in his car, bleeding from a gunshot wound. He was shot in the left side of his chest and the bullet went essentially into the front and out through the back. Reporter while greg was rushed to the hospital, a s. W. A. T. Team come the hillside where he had been shot. To the from the shooter . No. Vanished. Reporter but she had a detailed i was curious. When the 911 call about the shooting came in, the situation immediately rang a bell with the dispatchers. Greg mulvihill called dispatchers earlier in the evening to ask for advice. He received a Phone Call from an unknown person stating that person was a private investigator and had some information. Reporter greg said the mysterious caller was a man with a deep voice, who claimed to have documents that greg would want to see. Greg got the impression, it was evidence that could be used against him in his Custody Battle with diana. The man said he would leave a package for greg to pick up. Break asked the dispatcher whether he should go. What was the response . Probably not a good idea but it was up to him. And he went. Reporter this was a meeting spot. An isolated Dirt Road near a power pole. Greg asked his boss, a Neighbor Jason to join him on this bizarre mission. Jason told police around 11 00 p. M. the men pulled up to the intersection of the avenue and the Dirt Road. The package was supposed to be along the power pole. Reporter greg carried a Bicycle Light and gave a Childs Baseball Bat just in case. They walked along the path but could not find it. Greg scanned the area with his light and then noticed, in the brush, he sees a person lying on the ground including terrifying. Reporter the man appeared to be wearing camouflage. Greg or jason yelled, gun or maybe run. They turned and took off back towards their car. And that is when Greg Mulvihill was shot. As a Running Back they are hearing multiple bullets, multiple rounds moving past her head. Reporter they got in the car and took off but then you realize how badly he was injured. He pulled over. And jason called 911. Greg mulvihill was being hunted. Correct. Reporter see did not know the trap he was walking into. Nor who was sending him. Reporter miraculously greg survived his injuries. He was in the dark and did not have any idea who would have done this or anybody he could think of that would do this. Reporter greg did say he was near the end of a bitter Custody Dispute with his wife, Diana Lovejoy, but dismissed the idea that she could have played any role in what happened. There is no way. There is not the type of person. She cannot be involved in any way. Reporter of course, police paid a visit to diana and said she had no idea who couldve shot greg. Nothing in his immediate history that would have led us to think that he was involved in