Investigators chased a number of leads, and a few suspicious characters were soon charged with crimes, but nothing concrete could tie the suspects to the two Delphi murders.
For example, a man named Kegan Kline admitted that he had communicated online with German—and dozens of other teenage girls—while amassing a collection of more than 100 sexual images of young girls. He pleaded guilty to charges of child exploitation, child solicitation and possession of child pornography, but no real evidence linked Kline with the girls’ deaths.
Then, in September 2022—more than five years after the murders—a hawk-eyed volunteer receptionist named Kathy Shank found a tip that had been mislabeled as “clear.” The tip specified that a resident of Delphi named Richard Allen confirmed in an interview with an Indiana Department of Natural Resources officer that he had been on the hiking trail at the time of the Delphi murders and had seen girls on the trail.
Shank forwarded the mislabeled “clear” tip to a detective who had been trying to find a man who witnesses said they saw on the trail the day of the murders. One of the witnesses, a teenage girl named Railly Voorhies, testified that she said “hello” to a man who seemed overdressed for the weather, wearing a hat, a mask and dark clothes. He “did not seem like a happy person,” Railly said, and when she saw the “bridge guy” image, she realized that was the same man she had seen the day of the murders.
Allen, born in 1972, was a pharmacy technician at the local CVS pharmacy who had previously served in the U.S. Army and the National Guard. An unassuming married resident of Delphi, Allen was described by a local tavern manager as “[j]ust like a normal guy that I’ve seen for the last couple years … I would talk; he wouldn’t say much. He seems like a normal guy."
When police served a search warrant on Allen’s home, they found his .40 caliber handgun, which prosecutors later said matched the bullet found between the girls’ bodies. Armed with enough evidence, police arrested Allen on October 26, 2022, and charged him with two counts of murder. Upon his arrest, Allen reportedly told his wife, “Well, it’s over, it doesn’t matter anymore.”
In 2025, videos were released to the public showing Allen’s interrogation by investigating officers. Included in that release were recordings of phone conversations Allen had with his wife and mother. During one of the recorded conversations, Allen tells his wife, “I killed Abby and Libby.” He repeated that claim in other recorded conversations, but his lawyers state that those confessions were not made voluntarily.
Legal Proceedings
Allen—who was 44 years old at the time of the murders—admitted to police that he was on the trail that day, but he denied being involved. He stated that he was at his mother’s house that morning and went to the Monon High Bridge trail around noon.
After his wife told him that police were looking for information from anyone who had been in the area, Allen also voluntarily reported his presence on the trail to the Department of Natural Resources officer three days after the murders.
During his incarceration, Allen reportedly made multiple confessions to his wife, his mother, a psychologist, the prison warden and other prison employees and inmates. At his 2024 trial, prosecutors played recordings of some of Allen’s confessions for the jury.
It came out during the trial that 13-year-old Williams was discovered fully clothed, but she was dressed in German's clothing, while German’s body was discovered nude. Additionally, the .40 caliber bullet found near the girls’ bodies was also positively identified as coming from Allen’s gun.
Allen’s defense countered that he was suffering from a mental health crisis when he made those confessions and that Allen had a long history of major depressive disorder and anxiety disorder.
In November 2024, a jury found Allen guilty of the two murders; he was later sentenced to 65 years imprisonment for each killing, for a combined sentence of 130 years.
Aftermath