The 911 call came in at 5:30 in the morning, and the voice on the other end was barely understandable. A man was sobbing so hard that the dispatcher had to strain to make out the words. His wife had been shot. She was in their bedroom, bleeding.
He didn’t know what to do. He kept repeating that she wasn’t breathing, that someone had come in and shot her. “They just shot her in the side of the door,” he wailed, and then the line went quiet except for his choked breathing. The dispatcher stayed on the line, trying to keep him calm while officers and an ambulance were rushed to the address.
The call came from a quiet, rural property in Agency, Iowa, and because the young man who lived there had deep ties to law enforcement, nearly every available officer responded that morning. They arrived to find the trailer sitting peacefully in the morning light, but the peace was shattered the moment they stepped inside. Lisa Caldwell, 23 years old and five months pregnant, lay in her bed, bleeding heavily from a gunshot wound. The paramedics tried everything they could, but it was no use.
She was gone. Her unborn baby girl, a daughter they had already planned to name Zoey, was gone too. Seth Caldwell, her husband, was outside, shaking and crying, still trying to process what had happened. He told the officers his story in fragments, between sobs.
He said he had woken up around 4:30 a. m. to let the family dog out. The dog was acting strange, restless, like it sensed something was wrong.
He hadn’t seen anything unusual, so he reset his alarm for 5:00 and climbed back into bed. When the alarm went off, he let the dog back inside and started getting ready for work. Lisa was still asleep. He had stepped into the shower, and about five minutes later, he heard a loud gunshot.
He jumped out, ran into the bedroom, and flipped on the light. Lisa was lying there, bleeding, a bullet hole in the blanket that had covered her. She was still conscious but couldn’t speak. He rushed to her side, trying to get her to say something, but she couldn’t.
Then he heard a noise from the living room. He grabbed his own gun from the nightstand and went to check, but no one was there. The front door was standing wide open. He ran outside onto the porch, but there was no one in sight.
When he came back in, Lisa was no longer breathing. He grabbed the phone and called 911. Among the officers at the scene was Lisa’s father, a local deputy sheriff who had dreamed his daughter would one day follow in his footsteps. When the medics told him there was nothing more they could do, he didn’t hesitate.
He turned to his colleagues and told them to go arrest the person responsible. In his mind, there was only one possible suspect: the neighbor. The neighbor was a man named Brian Tate. He lived on the property next door with his mother, and he had a history of paranoid schizophrenia.
For weeks leading up to the murder, the relationship between Lisa, Seth, and Brian had been spiraling into a bitter conflict, and every single step of that escalation was about to be laid out for the police. It had all started with a dead deer. Seth had found it lying in the road in front of their property, dragged it into the ditch so he could get through, and hadn’t thought much of it. Then Lisa noticed a deer hide hanging from a tree on Brian’s land.
Later, she and Seth found the same hide sitting in a barrel on their own property. They tossed it back over the fence. Brian threw it back. Seth threw it back.
Eventually, the situation escalated beyond the deer hide. Brian called the police and accused Seth and Lisa of harassing him, claiming they had dumped a bucket of feces on his property and thrown rocks at his shed. What Brian didn’t know was that the officer who responded to that call was Lisa’s father. The officer had noticed that Brian was acting strange, erratic even, and he had wondered if Brian might be a danger to his daughter.
He had advised Seth to stop engaging with the neighbor entirely. And for a while, it seemed like the conflict had cooled down. But twelve days before the murder, Lisa found the deer hide left in front of their house again. Seth called the police, and officers went to talk to Brian.
Brian insisted that Seth and Lisa were the ones causing all the problems. A few days after that, Seth noticed fresh tracks near the fence. Then he saw the dog acting strangely. He panicked, thinking Brian might have poisoned the dog’s water dish, and rushed the animal to the vet.
So when Lisa’s father arrived at the scene that morning, he connected all the dots. A man with a documented history of serious mental illness, a combat veteran prone to paranoia, had been in a bitter feud with the couple. He was the obvious suspect. Within minutes of arriving at the trailer, officers were headed to Brian’s house, braced for anything.
They found Brian sitting calmly on his porch with his mother. He even offered the officers chairs and began answering their questions without any hesitation. He seemed almost too relaxed, but he explained that he had recently started taking new medication prescribed by his doctor. The stress of the conflict with his neighbors had taken a toll on his mental health, so his doctor had told him to take the pills and get more sleep.
Brian said he had gone to bed around 8:00 p. m. the night before and had only woken up recently, which meant he would have been sound asleep at the time of the shooting. His mother backed up his story completely, saying she hadn’t seen him leave the house all night and that neither of them had heard a gunshot.
Brian admitted he owned a rifle, but he said he hadn’t been keeping it close for about a week. He explained that because of the ongoing feud, he had been staying up at night with a gun nearby, basically standing guard because he was convinced Seth and Lisa might come over and throw rocks or worse. But his doctor had told him his condition was worsening, so he had stopped doing that. At one point, Brian said something that immediately caught the attention of the officers listening.
“For a long time, I was the nice guy, and it didn’t get me anything,” he said. “People used me. So now I’ve changed how I live. I’m more serious now, not the nice guy I used to be.
”
It was an unsettling statement, but the police still didn’t have enough to arrest him. They had two potential suspects now, and no physical evidence pointing at either one. Back at the trailer, crime scene technicians were methodically working through the house. They lifted fingerprints from the front door and found those belonging to Seth and three of his friends.
Out front, they discovered two cigarette butts, and from one of them, they were able to pull a partial DNA profile. They compared it to everyone who had known access to Lisa’s home, but there was no match. There were no signs of forced entry. Seth suggested that the front door might have been left unlocked after he let the dog out earlier that morning.
They lived in a quiet, rural area and didn’t worry about someone casually walking in. The murder weapon was nowhere to be found. Given the severity of the wound, investigators believed it had to be a hunting rifle or a shotgun, but there was nothing like that in the trailer. Seth provided police with a complete list of every gun he and Lisa owned, and none of them matched what they were looking for.
When investigators looked into Seth’s timeline, they found at least one detail that supported his story. There was indeed water in the shower, indicating someone had used it that morning. But that was only a small piece of a much larger puzzle. After speaking with Brian, police brought Seth to the station.
He agreed to answer questions, even though he was in a visibly terrible state. He cried, he yelled, he blamed himself for not being able to protect Lisa. He was so distraught that he even refused the lawyer his parents had hired, insisting he had nothing to hide. He walked them through his timeline again, sticking to the same story, and told detectives he was almost certain the neighbor had done it.
He described Brian as a man who constantly sat on his porch with a gun, and after the conflict started, Seth genuinely believed Brian might hurt one of them. While Seth was being questioned in one room, something significant was happening back at the trailer. A friend of Seth’s named Colton showed up, saying he was there to pick up his puppy, which Seth and Lisa had been watching for him. The police saw an opportunity and began talking to him.
Colton was casual at first, but somewhere in the conversation, he made a remark that instantly changed the investigation. He casually mentioned that Seth had a second phone. The officers pressed him for details, and Colton eventually admitted that Seth had a mistress, and the second phone was how he communicated with her. The information was relayed to the lead detective, who was still sitting with Seth.
The detective had read some of the messages on the second phone, and he decided to test Seth carefully. He asked if there had been any serious problems in the marriage, whether either of them had been seeing someone on the side. Seth looked him in the eye and said no. That answer set off alarms.
The detective kept pushing, and gradually, Seth’s story began to crack. He admitted there was a woman named Rachel, a co-worker, and that they had engaged in what he called a “light flirtation. ” But he insisted it was nothing serious, nothing physical. He claimed it was just talking, that Lisa knew about it and didn’t care.
But Colton was telling a different story. He said Rachel had been sending Seth explicit photos, and Seth had even shown him a few of them. While Seth was still maintaining his innocence in the interview room, his own friend was painting a very different picture of his marriage. To the investigators, it looked like Seth was trying to hide an uncomfortable truth.
They began to seriously consider whether he could have been involved in Lisa’s murder. When the detective steered the questioning in that direction, Seth shut down. He denied having anything to do with it, then decided he was done answering questions. Now, detectives were staring at two possible suspects: the husband and the neighbor.
The problem was, they still had no hard evidence pointing to either one. To make matters worse, they discovered that some critical investigative steps had been missed in the immediate aftermath of the murder. They had not taken gunshot residue swabs from either suspect’s hands. They had not seized their clothing for testing.
By the time the significance of these omissions became clear, it was too late. Then, something extraordinary happened. When officers returned to Lisa’s property, which was still sealed off as a crime scene, someone spotted a shotgun lying in the grass. It was about a hundred feet from the front door, right next to a tree that had police tape wrapped around it.
Officers had clearly been standing in that exact spot, and somehow, they had missed a full-sized gun sitting openly in the grass. Ballistics testing confirmed that this was the weapon that had killed Lisa. Police traced it back to a friend of Seth and Lisa’s, a man who had actually lived with them for a while but had recently moved out. He confirmed the shotgun was his, said he hadn’t picked it up yet, and that it should have been inside the house.
He also added a crucial detail: he always kept it loaded. When the shotgun was examined more closely, investigators found another oddity. One shell was jammed inside the chamber. The owner said that had never happened before.
His guess was that whoever fired the weapon wasn’t familiar with that particular model, which was why it had locked up. Detectives were now leaning heavily toward Seth. The weapon choice seemed strange. Brian had his own guns, so if he were the killer, he would have had to break into Lisa’s home and grab a weapon from inside before shooting her.
That didn’t make any sense. Seth, on the other hand, had been inside the house all night. And from the very beginning, he hadn’t said a single word about his friend’s shotgun being in the house. The next step was to talk to Rachel, the woman Seth had allegedly been involved with.
Rachel confirmed that nothing physical had ever happened between them, but her version of the relationship didn’t exactly match what Seth had claimed. She told investigators that Seth had confessed he loved her and wanted to be with her. She also confirmed she had sent him intimate photos more than once. According to Rachel, Seth constantly talked about divorcing Lisa, but every time she pressed him on when, he dodged the question.
Eventually, Rachel told him she had started talking to another man and was thinking about dating him. Seth’s response was, “Give me a couple of weeks. I’ll finally settle the divorce. ” Rachel agreed to wait.
Then, just one day before the murder, Seth texted her and said that the very next day, he and Lisa were finally splitting up, and Lisa would be leaving the house. But detectives couldn’t find anything to support that. Lisa hadn’t told a single friend or family member that she was planning to leave Seth. Her messages with him didn’t suggest anything like that either.
If anything, the day before she died, Seth and Lisa had been out running errands together, and people who saw them described them as totally normal. Another chilling detail came from one of Seth’s co-workers. He said that a few weeks before the murder, he had overheard Seth arguing on the phone. From what he could tell, it sounded like Lisa was on the other end.
After Seth hung up, he made a comment to the effect of, “It’d be easier if she just got in a car wreck and died. ”
One of Seth’s friends also told police that Seth had talked about wanting to leave Lisa, but that he didn’t want to pay child support. And then there was the neighbor drama. A few of Seth’s friends admitted that they had been the ones throwing feces onto Brian’s property and pelting his place with rocks.
And they said they had done it because Seth asked them to. The picture that emerged was damning. Detectives believed Seth wanted out of his marriage. He wanted to be with Rachel.
But two things stood in his way. First, a divorce would mean having to pay child support. Second, it would blow up his relationship with Lisa’s father, a respected deputy sheriff, which could have ruined his dream of a law enforcement career. Lisa’s dad had the power to block him from getting hired or promoted anywhere locally.
The theory that took shape was that Seth had come up with a plan to solve all of his problems with a single pull of the trigger. He would pin the murder on the mentally ill neighbor, Brian. He had deliberately stoked the feud to make Brian look like the obvious suspect. He had even recruited his friends to throw feces and rocks at Brian’s property to escalate the tension.
Then, he had used his friend’s shotgun to kill his own pregnant wife in their bed. When he called 911, everyone already knew about the conflict with Brian. So the police immediately focused on the neighbor, which meant Seth didn’t go through the standard procedures that might have exposed him. Just six weeks after the murder, Seth was arrested and formally charged with first-degree murder.
He pleaded not guilty, and the trial began in February 2013. Friends, co-workers, and Rachel all took the stand and testified against him. But Seth’s attorney fought hard, arguing that the police had fixated on his client from the very beginning and never properly investigated the person who was the far more likely killer: Brian. The defense pointed out that in the entire investigation, Brian was never fingerprinted and his DNA was never sampled.
He had essentially been written off as a real suspect. Adding to the tragedy, Brian had died a few months before the trial, making it impossible to fully investigate his involvement. Still, the defense came to court with several points they believed supported Brian’s guilt. First, Seth’s attorney called Brian’s treating doctor to the stand.
The doctor testified that just a few months after Lisa’s death, Brian’s condition had taken a serious turn, and he had to be involuntarily committed. The doctor said Brian wasn’t just dealing with paranoid schizophrenia; he had also been diagnosed with bipolar disorder. Brian believed the government was plotting against him and genuinely feared for his own safety. On top of all that, Brian had been using marijuana because he thought it helped, but the doctor said it only made him more unpredictable and more dangerous.
After that, the defense called several of Brian’s neighbors. One of them testified that after Lisa’s death, Brian had made a comment along the lines of, “If the sheriff’s office did its job, none of this would have happened. ”
The defense also pointed to some items the police had never followed up on. Officers had found a half-eaten sandwich and a glove on the victim’s porch.
Seth’s attorney argued that Brian could have been watching the trailer while Seth and Lisa were asleep, waiting for the right moment to break in. In the end, the jury deliberated for four days, but they couldn’t reach a unanimous verdict. Two jurors insisted Seth was not guilty. The judge had no choice but to declare a mistrial.
A new trial started two months later. And that jury couldn’t agree either. Once again, the case ended in a mistrial. A third trial was scheduled for the summer of 2014.
And right before it began, something completely unexpected surfaced. All that time, both the defense and the prosecution had been digging for anything that could strengthen their side. In the lead-up to the third trial, Seth’s attorney came across something major. He got access to Lisa’s messages and found a conversation with a man named Jason, a co-worker from the same jail where Lisa had worked.
Based on those texts, it was clear that Lisa and Jason had been having a secret relationship. More than that, they had even talked about the possibility that Lisa might be pregnant by Jason, not by her husband. The defense attorney immediately pointed out something else. Investigators had known about this affair from the very beginning.
They had seen it when they first went through Lisa’s phone, but for some reason, it had never made it into the case file. The affair was essentially buried. It never came up in the first two trials. Seth’s attorney argued this could completely change the picture.
Maybe Jason was the real killer. Maybe he had wanted to keep his own family intact and killed Lisa to end the affair. And because the police never truly investigated him, he might have gotten away with it all this time. At first, Jason denied having anything going on with Lisa.
But just days before the third trial, he finally admitted it. He said he had lied because he didn’t want his wife and four kids to find out. He claimed he and Lisa had met at work and started seeing each other in secret. At the time, Lisa still had more than six months before her wedding to Seth, but she had already been with Seth for years.
Jason admitted they had been sleeping together regularly and that they had genuinely wondered if he could be the father of Lisa’s baby. According to Jason, they had ended the affair a few weeks before the murder because it was starting to damage both of their families. Jason’s wife defended him, saying he was home at the time of the murder. Investigators later confirmed that Jason was not the father of Lisa’s baby, and his DNA didn’t match the sample found outside the victim’s house.
In the end, the jury didn’t buy the idea that the co-worker was responsible. This time, they reached a unanimous verdict. Seth Caldwell was found guilty of first-degree murder and the termination of Lisa’s pregnancy. He was sentenced to life without the possibility of parole, plus an additional 25 years.
Afterward, Seth tried to appeal his conviction, but the appeal was denied. To this day, he insists he is innocent, but there is no realistic path for him to ever get out. Lisa’s family has no doubt Seth is the one who killed her. They don’t believe anyone else was behind it.
Years later, the messy case still lingers. Some people still think Brian was the more likely killer. But after three trials and a failed appeal, that verdict isn’t likely to change.
The story ends where it ends, with two dead people, one man in prison, and too many unanswered questions left in the grass by a tree wrapped in police tape.
