April Tinsley · the case that waited thirty years

1988–2018 · FORT WAYNE, SPENCERVILLE AND GRABILL

April Marie Tinsley was eight years old, a first-grader at Fairfield Elementary who sang in the children's choir at Faith United Methodist Church. On Good Friday, 1 April 1988, she was playing between friends' houses in her Fort Wayne neighborhood when, at about three in the afternoon, she went back to one house to fetch her umbrella. She never arrived at the other. Three days later, on 4 April, her body was found in a ditch along a rural road near Spencerville, in DeKalb County northeast of the city. The cause of death was asphyxiation. It became, and for thirty years remained, Fort Wayne's most famous unsolved case — and then the case that taught American policing a new science.

The investigation was large from the start and is documented in its stages. On 26 April 1988 the police sent DNA evidence to a laboratory in Germantown, Maryland; the testing of that era was inconclusive. Within the month, on 20 April 1988, a volunteer organization had formed under the name APRIL to keep the case before the public. An early suspect — a 34-year-old man charged in a separate molestation case and acquitted of it — was never charged in April's killing. In 1991 a joint homicide team examined the Tinsley case alongside the Robin Bowker case, and on 7 August 1991 the FBI's Behavioral Science Unit determined the two were unrelated. Twice the killer himself re-entered the record. In May 1990 a message was found written on a barn in St. Joseph Township in which the writer claimed the killing and threatened to kill again. In 2004, notes and used condoms were left on bicycles belonging to young girls in Fort Wayne — and the DNA from the condoms matched the profile recovered in 1988. The killer had been in the city, taunting it, sixteen years on. The FBI's Child Abduction Rapid Deployment team came to the case in June 2009, and the Bureau issued a new profile that year. In 2015 investigators released a computer-generated composite of the suspect's face, built by Parabon NanoLabs from the DNA itself — what the face of the unknown man might look like. No identification followed.

The identification, when it came, came from genealogy — a new instrument: the technique had produced its first famous arrest only that spring, in California's Golden State Killer investigation. In May 2018 a Fort Wayne detective sent the DNA profile to Parabon NanoLabs, and Parabon's genealogist, CeCe Moore, working through the public database GEDmatch, built family trees from the profile's matches until, by 2 July 2018, the search had narrowed to two brothers. Detectives turned to the one who lived in the county: John D. Miller, 59, of Grabill, a few miles from where April's body had been found. From his household trash they recovered used condoms, and the DNA matched the 1988 profile. On 15 July 2018 detectives approached Miller at his home — and, before they had told him why they had come, he named April Tinsley himself. In interviews he said that he had planned to kidnap a child but had not seen April before that afternoon. He was charged with murder, child molesting and criminal confinement, and on 19 July 2018 he pleaded not guilty.

There was no trial. On 7 December 2018, at a hearing that had been scheduled to argue a change of venue, Miller changed his plea to guilty to murder and child molesting. On 21 December 2018 he was sentenced to eighty years in prison: fifty years for the murder and thirty for the molesting, a term that ran past any possible release in his lifetime — the Department of Correction's earliest date was in 2058, when he would have been 99. He died in custody in September 2025, aged 66, as the correctional record was reported that month. The case's place in the larger record is fixed: April Tinsley's killing was among the first major American murders solved by investigative genetic genealogy, the technique of identifying a suspect through his relatives' DNA, and it remains the reference case for the method — covered by America's Most Wanted and Crime Watch Daily while it was cold, by Investigation Discovery, and by ABC's The Genetic Detective, whose 2020 episode on the case was titled “The Deadly Playdate.” In 2019, in the aftermath of the technique's first famous successes, GEDmatch tightened the terms under which law enforcement could search its database. Fort Wayne's thirty-year case is part of the reason the rules read as they do.

Sources:

1. Federal Bureau of Investigation, Tinsley case materials and 2009 profile; Fort Wayne Police Department case record
2. Allen Superior Court plea and sentencing record, 7 and 21 December 2018, as reported by the Associated Press and WTHR
3. Parabon NanoLabs Snapshot and genetic-genealogy reporting, 2015–2018
4. ABC, The Genetic Detective, “The Deadly Playdate” (2020); Investigation Discovery and America's Most Wanted case coverage