Miller was arrested at his home in Grabill on Sunday, July 15 for the murder of 8-year-old April Tinsley in 1988. He is being held in Allen County and was expected to appear in court on Monday.
In 1990, two years after April Tinsley's death, police believe her killer scrawled this message on a barn door near where her body was recovered.
Her murder became the Midwestern state's most notorious cold case. It is thought that formal charges will be brought against Miller this week.
John D. Miller was arrested in connection to April Tinsley's 1988 murder.
"I kill 8 year old April M Tinsley did you find her other shoe haha I will kill again", said the message carved into the barn door in 1990 at Schwartz Road and in 37.
Janet Tinsley of Fort Wayne has posted on her Facebook page that the 1988 abduction and murder of her daughter, April Marie Tinsley, will be the subject of the program "On the Case with Paula Zahn" at 10 p.m. today on the Investigation Discovery Channel cable TV network.
"Hi honey. I been watching you", he wrote in one of the notes, according to information obtained from the Federal Bureau of Investigation.
The arrest affidavit said that police, using outside labs, compared DNA evidence with information on genealogical websites, which narrowed the search to Miller and his brother. I been watching you I am the same person that kinapped an rape an kill Aproil Tinsely you are my next vitem.
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According to a probable cause affidavit, a FWPD detective arranged for DNA testing to be done on the April Tinsley suspect evidence sample in May 2018.
Miller then admitted to police that he abducted Tinsley and took her to his trailer in Grabill, where he said he had sex with her and then killed her, the affidavit said. In one of those incidents, the condoms were left with a note threatening some little girls, saying he was the one who killed Tinsley, and that one of the girls would be next. Three days later, her body was found in a ditch by a jogger. "I will kill agin". After allegedly dumping her body, Miller said he later found one of her shoes in his auto, which he dumped into another ditch. Police said she'd been raped, but were not able to track down a suspect through DNA.
DNA from the condoms matched traces found on Tinsley's underwear.
According to court documents, upon being asked if he knew why the police had arrived at his house, Miller replied "April Tinsley" before admitting to the murder.
Wayne reports John D. Miller 59, has been charged with murder, confinement and child molesting.
According to a probable cause affidavit, Detectives told him they had a DNA match in the rape and murder of Tinsley.
Police have also positively identified his DNA after sifting through his rubbish outside his house. Then he dumped her body the next day. He kidnapped her, sexually assaulted her, and choked her to death so she wouldn't tell anyone, he allegedly told detective.