DELPHI, Ind. — A man who was once a prime suspect in the Delphi double murder case made a detailed confession to the killings while in prison, according to a new court filing from Richard Allen's defense team. Allen was convicted in November of the brutal 2017 murders of Abby Williams and Libby German and sentenced to 130 years in prison. Allen continues to maintain his innocence. Why Richard Allen’s attorneys say conviction should be vacated in Delphi murders case The supposed confession was made by Ron Logan who owned the property where the girls' bodies were found on Feb. 14, 2017. According to the court filing, Logan made the confession while serving a prison sentence for a probation violation at the New Castle Correctional Facility. It was there that he began speaking with a fellow inmate on his cell block, Ricci Davis. Davis contacted law enforcement in May 2017 to tell them that Logan had confessed to a step-by-step killing of Abby and Libby. Davis wrote and signed a statement in June 2017 that read: "Mr. Logan has made reference to the killings in Delphi, IN. He told me he was the one who had killed those girls, that it got out of hand. He walked with them in the woods to his property & the girls wanted to turn back. Said something about walking the —, he grabbed the youngest girl to reassure her it was ok, however they panicked and he also panicked. He indicated he ended up cutting the oldest with a box cutter. He went on telling me that he killed both of them because it was took too far." Indiana State Police First Sergeant P. Hansard interviewed Davis on the same day he wrote that statement. The officer's notes from the interview were also published with the filing and provided more details about Logan's supposed confession. Davis told the officer that Logan said he was walking with the girls through the woods to take them back to his home and show them some of his animals. Logan allegedly told his fellow inmate that he used a box cutter to slit Libby's throat and took Abby with him "for a while" but never said exactly where. Davis recounted that Logan said he had slit both girls' throats. Logan returned to the scene of the crime later in the evening while the searches for the girls were taking place, according to the filing. Davis said Logan told him he tried to move Libby's body to an area where it wouldn't be found. Logan said he burned the clothes he wore that day in a fire pit, according to Davis' statement. Logan's supposed confession contained details that were not made public at the time as well as details that came out in Richard Allen's trial. Logan was a prime suspect in the killings in the early days of the investigation. So much so that an FBI agent was able to obtain a search warrant for his home. In that warrant, Agent Nikkole Robertson said Logan's phone pinged in the area of the Monon High Bridge Trail around 2:09 p.m. on the day the girls were murdered. The prosecution contends the girls were killed around 2:32 p.m. because that's the last time Libby's phone registered any movement. The data from Logan's phone also shows he sent a text message later that evening at 7:56 p.m. and Robertson said the pings show Logan's phone was "likely outside of his residence and in the proximity of where LG and AW's bodies were located." The same phone data shows Logan received a text message at 10:16 p.m. that same night and again the data indicates Logan's phone was "likely outside of his residence and in the proximity of where LG and AW's bodies were located." That data would line up with Logan's alleged confession that he returned to the scene later that evening. Another detail of Logan's confession that lines up with the evidence is that he attempted to move Libby's body. Crime scene reconstructionist Pat Cicero testified during Allen's trial that Libby was dragged to where she was ultimately found. While Logan made a reference to a sexual assault in his supposed confession, he never mentioned other details of the crime scene such as the fact that Libby was nude or that Abby was wearing Libby's clothes. However, the detail Allen's attorneys were most focused on in their filing is Logan's alleged mention of using a box cutter. When Logan supposedly made this statement, the fact that the girls' throats were slit was not made public. Dr. Roland Kohr, the pathologist who performed the autopsies, testified during Allen's trial that the likely murder weapon was a box cutter. ”Now looking back, they're able to see with that box cutter information that opened the door," Attorney John Tompkins said. "Once they had box cutter and they had a suspect who confessed to using a box cutter we definitely should've been able to get into at least this other suspect.” However, Judge Frances Gull repeatedly ruled against the defense team's attempts to introduce alternative suspects in the murders. Logan's home was ultimately searched but it's unclear if anything was found that connected him to the murders. Allen's attorneys wrote in their filing that the confession and the details in it "exculpates Mr. Allen and would probably produce a different result at a retrial." Defense attorneys maintain Richard Allen’s innocence Logan died from COVID-19 in 2022. Prosecutor Nicholas McLeland has yet to file a response to the claims. Tompkins said it's too early to tell how or even if it will affect Allen's conviction for the murders. FOX59/CBS4 reached out to the defense attorneys, McLeland, Sheriff Tony Liggett and Indiana State Police Lieutenant Jerry Holeman for comment. All declined or did not respond. You can find the referenced documents below. Ricci Davis Written StatementDownload Full Motion To Correct ErrorsDownload Ron Logan Search Warrant AffidavitDownload