Indiana 1988 Cold Case Solved — killer left a note on a bicycle 16 years later

30 years this family has waited for answers. 8-year-old April Tinsley went missing walking to a friend’s house. Her body was found in a ditch.  He wrote it in crayon on the side of a barn in St. Joseph Township, Indiana in May 1990, 2 years after the murder. The man who killed April Marie Tinsley came back.

 He found a barn near where her body had been discovered. He picked up crayons and he wrote the words he left on that barn wall that day are on record. They have been photographed, documented, and studied by investigators for more than 30 years. What they say is not complicated. What they say is not coded. They are a statement written by hand by a man who believed he would never be found.

 And they end with two words, “Ha ha”, that tell you everything you need to know about the psychology of the person who wrote them. This is not a story about a case that went cold. This is a story about a killer who stayed warm, who kept reaching back into a community he had already destroyed, who left his own handwriting and eventually his own DNA on notes taped to children’s bicycles 14 years after the murder, who believed for 30 years that his arrogance was better protection than silence.

 He was wrong, but it took three decades, two forensic technologies that did not exist when he committed the crime, a genealogist named C.C. Moore, and three used condoms pulled from his rubbish bin to prove it. Before John D. Miller, there was April. On April 20th, 1988, 19 days after the murder, 90 members of the Fort Wayne community gathered and formed a volunteer group. They called it April.

The letters stood for Associated Parents Regional Independent League. Later, they changed it to Abduction Prevention Reconnaissance and Information League. But, the name they chose first tells you what the community understood immediately, that this was not just a crime, it was a wound that had changed the shape of a city overnight.

 Two local radio stations established a reward fund within days. Money was raised separately for her burial and for her family. Her memorial service was held at the Faith United Methodist Church on April 8th. She was buried at Greenlawn Memorial Park. The children’s choir at that church had one fewer voice in it after April 1st, 1988.

 A second-grader at Fairfield Elementary School left an empty desk. Richard Morgan, who grew up in April’s neighborhood, said decades later that he remembered it like it was yesterday. The children walked in groups afterward. That everyone was afraid of the man in the truck. That something that tragic happening was very traumatic.

 That is what April’s absence looked like from the outside. A community that reorganized its entire sense of safety around a single afternoon. April Marie Tinsley was 8 years old. She was born on March 18th, 1980. She was a second-grader. She sang in the children’s choir. She had a mother named Janet, who walked her out to the street on the morning of April 1st, 1988, Good Friday, and said goodbye.

 That afternoon, April was playing with two friends, moving between houses in her South Central Fort Wayne neighborhood. It began to rain. She told her friends she was going back to retrieve her umbrella, which she had left at another friend’s house a couple of streets away. She never came back. Her mother filed a mi

ssing person report at 3:00 p.m. that same day. Officers were dispatched immediately. The initial search for April Tinsley included 250 Fort Wayne police officers and 50 volunteers. A witness reported seeing a white man in his 30s forcing a girl into a blue pickup truck. The truck was damaged. The description went out. Nothing came back. Three days later, April 4th, 1988, a jogger found her body in a ditch along County Road 68 in southern DeKalb County, approximately 20 miles from her home in Fort Wayne.

She had been sexually assaulted and strangled. She had been dead for at least 2 days. She was dressed. One shoe was missing. Her underwear contained the suspect’s DNA, but in an amount too small to profile with the technology available in 1988. A sex toy was found near the body and eventually linked to the case.

 John Miller later told investigators that he went back after dumping her body and found her shoe still in his car. He threw it in a ditch along the road. A composite sketch was released based on the witness who had seen the blue pickup truck. No match. DNA samples were sent to a private laboratory in Germantown, Maryland within weeks of the murder.

Inconclusive. The evidence was preserved. The case stayed open. And the man who had done it went back to his trailer in Grabill, 5 miles from the barn where 2 years later, he would pick up a set of crayons and write April’s name on a wall. In May 1990, police found a message written on the exterior of a barn in Saint Joseph Township.

It had been written in crayon. The crayons were found nearby. The message read, and these are the exact words, with their original spelling errors preserved, “I kill April Marie Tinsley. I will kill again.” And to the right of the message, “Ha ha.” The “Ha ha.” It is easy to read that phrase and feel revulsion and stop there.

But it is worth sitting with what the “Ha ha” actually tells us, because it explains everything that came after. A man who writes “Ha ha” on a barn wall is not a man who is afraid of being caught. He is not a man who is hiding. He is a man who is performing his own invincibility for an audience he believes will never reach him.

The haha is not recklessness. It is confidence. The confidence of someone who had already watched an investigation go cold and concluded that he was simply beyond the reach of whatever tools existed. He was right for a while. Investigators confirmed the message was linked to the crime. The barn was 5 miles from Miller’s trailer in Grabill.

 He had written a confession in crayon on a barn wall half a mile from where he lived and walked away. In 2009, 21 years after the murder, the FBI’s Behavioral Analysis Unit completed a psychological profile of the killer. They described him as a preferential child sex offender, meaning someone with a long-term and persistent sexual desire for children.

They estimated he was a white male then in his 40s to 50s living or working in northeast Fort Wayne or Allen County with a low to medium income. It was an accurate profile of John D. Miller in almost every detail. He was living in a trailer park in Grabill. He was in his late 40s. He had been there within reach the entire time.

Then 14 years after the barn wall message, he came back again. Memorial Day weekend 2004, four notes began appearing across Fort Wayne. Three of them were taped to girls’ bicycles. One was left in a mailbox. Each note was accompanied by used condoms biological evidence left voluntarily by the man who had murdered an 8-year-old girl in 1988 and had apparently decided that 16 years of silence was enough.

The notes contained his handwriting. They contained Polaroid photographs and they contained a direct reference to April Tinsley by name. One note reportedly told a girl that he had been watching her. That he was the same person who had kidnapped and raped little April Tinsley. That she was his next victim. That she should report the note to the police or he would blow her house up.

He left these notes on children’s bicycles. He signed them with a murder. And he left his own DNA with each one. That last part is the thing that requires the most examination. Because it is not an accident. It is not carelessness. A man who had evaded detection for 16 years and who was confident enough to write haha on a barn wall was not accidentally leaving biological evidence with threatening notes. He was doing it deliberately.

 He believed the DNA would never connect to a name. He believed he existed outside the reach of forensic science. The notes were not a mistake. They were a declaration. That declaration, those used condoms left on children’s bicycles in 2004 became the foundation of his identification 14 years later. A killer who wrote a murdered child’s name on a barn wall in crayon.

Who taped notes to little girls bicycles 16 years later and left his own biological evidence with them. Who believed his arrogance was armor. In a moment the science that proved him wrong. If this is the kind of story this channel should keep telling, subscribe. There is more. For years after the 2004 bicycle notes, DNA from the condom sat in evidence storage.

The biological profile it contained was real and complete, far more usable than the degraded sample from 1988. Investigators had his DNA. They simply had no name to match it against. The national CODIS database ran the profile repeatedly. No match came back. John D. Miller had never been required to submit a DNA sample.

He was invisible to every conventional forensic tool. Then in May 2018, 30 years after the murder, 14 years after the bicycle notes, Fort Wayne police detective Brian Martin sent the DNA sample to Parabon NanoLabs, a forensic science company based in Virginia. Parabon offered two things that no law enforcement database could provide.

The first was DNA phenotyping, the ability to read genetic markers within a DNA sample to predict the physical appearance of the person it came from. Eye color, hair color, skin tone, face structure from a DNA sample alone with no photograph and no name, Parabon could build a face. They had done it once before for this case.

In 2015, Fort Wayne police had sent the sample to Parabon and received an initial composite, a face built entirely from April’s killer’s genome. In 2016, they updated it to show what the suspect would look like aged between 49 and 59. The face on that composite is John D. Miller. It was published. It was circulated.

It did not produce a tip that led to an arrest because without a name to attach it to, a composite is a face without a door. The second thing Parabon offered in 2018 was different. It was genetic genealogy and it was the door. On July 2nd, 2018, the genealogist C.C. Moore narrowed the search to the two brothers.

C.C. Moore is the forensic genealogist who had worked the Golden State Killer case earlier that same year, the case that changed the entire landscape of cold case investigation in America. She had uploaded the DNA profile to GEDmatch, a public genealogy database where individuals voluntarily submit their genetic information to find relatives.

A partial familial match had appeared. Someone in the killer’s family had uploaded their DNA. Moore built the family tree outward from that match, tracing branches, cross-referencing public records, narrowing the field until the tree pointed to two brothers living in Indiana. One of them was a 59-year-old man named John D. Miller.

He lived on lot number four in the Grabill mobile home park, the same trailer he had been living in when he abducted April Tinsley 30 years earlier. The barn where he had written her name in crayon in 1990 was 5 miles away. He had never left. Investigators set up surveillance on Miller’s property. They waited.

After 2 weeks, he put out his rubbish. They collected it. Inside the bag, three used condoms. The Indiana State Police laboratory tested the DNA. It matched the DNA from April Tinsley’s underwear collected in 1988. It matched the DNA from the bicycle notes left in 2004. 30 years, three samples, one man.

 Six days later, detectives Brian Martin and Clint Hetrick drove to Grabill. Miller was pulling into his property with groceries in the back of his car when they approached. The detectives gave him the opportunity to take his groceries inside first. He said no. They asked if he would come with them to the police station to help with a matter they were investigating.

He agreed. He got in the car. On the 20-minute drive from Grabill to downtown Fort Wayne, John D. Miller chatted comfortably with the two detectives who had just collected his DNA from his rubbish bin. He told them how he liked crossword puzzles. He told them about his favorite television shows.

 He told them he would never miss an episode of Live PD, a program about police pursuing criminals. Detective Hetrick said later, “I think he enjoyed the car ride down inside the interview room. After being advised of his rights, the detectives asked Miller if he knew why they wanted to speak with him. He said, “April Tinsley.” He then told them everything.

 He had been trolling down the street on April 1st, 1988. He had not seen April before. He pulled up a block ahead of her, got out of his car, and waited for her to walk past. He ordered her to get in. He drove her to his trailer in Grabill. He choked her to death after assaulting her for nearly 10 minutes because he was afraid she would report him to the police.

 That night, he drove her body 20 miles to County Road 68 in DeKalb County and left it in a ditch. He found her shoe in the car afterward and threw it in a ditch along the road. He said all of it. In the same interview room where he had sat talking about crossword puzzles 20 minutes earlier, on December 21st, 2018, John D.

 Miller stood in Allen Superior Court before Judge John Surbeck and changed his plea to guilty. He was convicted of murder and child molesting. The sentence was 80 years, 50 years for the murder, 30 years for the child molesting. His earliest possible release date was set at July 15th, 2058. He would have been 99 years old. April’s family had sought the death penalty.

Her mother, Janet Tinsley, said after the sentencing, “April really did not get the justice she deserves. But right now it is a start. We are never going to forget her.” The plea deal was understood. It removed the possibility of appeal and put Miller in prison immediately and permanently. Understanding it did not make it feel like enough.

 Miller was moved to the New Castle Correctional Facility in January 2019 and there he stayed. And there he stayed while the case closed in the courts. While Fort Wayne exhaled. While April’s family tried to find something that resembled normal on the other side of 30 years of waiting, Janet Tinsley’s phone kept ringing. Every month between the 5th and the 10th, an automated text message arrived from the Indiana Department of Corrections.

The same message every month. John D. Miller, earliest release date, July 15th, 2058. For 7 years, every single month, a reminder delivered by algorithm that the man who had taken her daughter was still alive and her daughter was not. Janet said later that those texts were a monthly reminder that he was still here, that her daughter was not, that the date July 15th, 2058 sat in her phone like a countdown to a release that was never supposed to happen.

A number that represented the distance between what he had done and what the system could give her in return. On September 4th, 2025, John D. Miller died of natural causes at Saint Vincent Hospital in Indianapolis. He was 66 years old. He had served 7 years of an 80-year sentence. He was pronounced dead and the Indiana Department of Corrections confirmed it.

The man who had written “Haha” on a barn wall in 1990, who had taped notes to children’s bicycles in 2004, who had chatted about crossword puzzles on the drive to his own confession, was gone. Janet Tinsley said, “He should not have lived as long as he did and hopefully I can go back to a more normal life. Those texts will stop now.

” John D. Miller died in a prison bed on September 4th, 2025. He wrote April’s name on a barn wall. He left his own DNA on bicycle notes. He talked about TV shows on the drive to his own confession. He believed for 30 years that arrogance was protection. The science proved otherwise. If you want more of this, subscribe.

There is something specific about the psychology of John D. Miller that this case makes visible. Something that distinguishes it from every other cold case in American forensic history, and that is worth examining before we close. Most killers go silent. They commit a crime and they recede. They understand at some level that invisibility is survival.

John D. Miller did the opposite. He returned to the barn. He wrote on the wall. He went back 14 years later and left notes on bicycles with his own biological evidence. He did these things not despite the risk, but seemingly because of it. The taunts were not recklessness. They were his identity. Being the man who killed April Tinsley and got away with it was something he needed to keep being in some visible way, even if only to himself.

The psychological profile the FBI produced in 2009 described him as a preferential child sex offender with long-term and persistent patterns. What the profile could not predict was that his need to remain connected to the crime he had committed would ultimately be the mechanism of his identification. He did not need to leave those condoms with the 2004 notes.

 He chose to, and that choice made from a position of absolute confidence in his own invisibility handed investigators the DNA that C.C. Moore would eventually trace back to his family tree. He was caught by his own arrogance, not by a tip, not by a witness, not by a coincidence, by the biological evidence he volunteered.

 This case also established something significant in the history of forensic science. The combination of DNA phenotyping and investigative genetic genealogy used on the April Tinsley case, Parabon building the face, C.C. Moore building the family tree, was among the first major applications of both technologies working together on a single investigation.

That combination is now standard practice in cold case units across the United States. The template built to find April’s killer has since been used to identify dozens of murderers in cases that had been considered permanently unsolvable. April Tinsley’s case did not just close. It opened the door for other families.

In 2015, 3 years before Miller was arrested, 7 years before he died, construction began on a memorial near the intersection of Hoagland and Masterson Avenues in Fort Wayne. The street where April disappeared. It is called April’s Garden. A plaque, a bench, a space in the city that holds her name not as a cold case file number, but as a person who belonged to this place.

After Miller’s death on September 4th, 2025, April’s family held a balloon release at the garden. It was open to the public. People brought balloons and flowers. A community that had formed a volunteer group 19 days after a murder, that had kept a reward fund active for 30 years, that had walked in groups because everyone was afraid of the man in the truck, came back to the garden and released balloons.

John D. Miller wrote April Marie Tinsley’s name on a barn wall in crayon in 1990 because he believed owning her name gave him power over it. He thought the haha was the last word. He was wrong about that, too. April Tinsley was 8 years old. She was a second grader who sang in the children’s choir.

 She had a mother who walked her to the street on a Good Friday morning and said goodbye. She went back for her umbrella and she did not come home. Her name is on a garden now in the city where she lived, where the people who remembered her planted something that grows. The science refused to stay quiet. And in the end, so did April.