On February 13, 2017, two teenagers named Liberty German and Abigail Williams set out for an afternoon hike along the Monon High Bridge Trail in Delphi, Indiana. They never returned home. The search ended tragically the next day when searchers found their bodies in a rugged, wooded area about a half-mile east of the abandoned rail bridge. The investigation that followed became one of the most scrutinized cases in modern true crime history, marked by digital evidence, public confusion, and decades-long speculation regarding what actually happened on that riverbank.
Public curiosity has focused intensely on the physical evidence and the circumstances of the recovery site. While sensationalized accounts often circulate unverified rumors, looking closely at court documents, police press releases, and testimony from the 2024 trial of Richard Allen reveals the documented reality of the investigation. Let's examine how the evidence was handled, what the trial established, and how the digital trail left by the victims ultimately shaped the case.
The Disappearance on the Monon High Bridge
Liberty German, 14, and Abigail Williams, 13, took advantage of an unseasonably warm day off from school to visit the trail. They were dropped off by family members around 1:35 p.m. As they walked along the historic Monon High Bridge—an elevated, wooden-slatted structure crossing Deer Creek—Liberty captured a short smartphone video of her friend walking ahead of her.
Around 2:07 p.m., Liberty recorded a second, crucial piece of video. A man wearing a dark jacket and jeans is seen walking on the bridge, instructing the girls to go "down the hill." Family members became alarmed when the girls failed to show up at their scheduled pickup location at 3:15 p.m. By evening, local law enforcement and community volunteers had initiated a massive search.
Searchers located the victims' bodies on February 14 in a wooded area on the north bank of Deer Creek, positioned across the water from the trail. The physical environment—steep embankments, thick brush, and freezing water—complicated both the initial rescue efforts and the subsequent forensic processing.
Examining the Crime Scene and Physical Evidence
Law enforcement agencies, including the Indiana State Police and the FBI, processed the wooded recovery site over several days. Investigators recovered specific items of physical evidence from the area, which became central to the prosecution's case years later.
A single unspent .40-caliber bullet was found between the bodies of the victims. According to forensic firearms experts who testified during the trial, toolmark comparison techniques linked this cartridge to a SIG Sauer P226 pistol owned by Richard Allen. Investigators argued that the cycling mechanism of Allen's firearm left microscopic markings on the bullet casing when it was loaded and ejected, though defense attorneys heavily contested the reliability and certainty of this forensic match.
In addition to ballistic evidence, investigators cataloged footprints, discarded clothing items, and organic material found at the scene. Because the area was public and heavily trafficked by volunteers during the initial search, preserving uncontaminated samples proved difficult. Investigators relied heavily on digital forensics rather than traditional DNA samples left at the scene, as foreign DNA profiles recovered from the immediate area yielded mixed and limited utility.
The Digital Breakthrough: Video and Audio
The most famous elements of the Delphi investigation came directly from Liberty German's smartphone. Realizing danger, Liberty kept her phone in her pocket while recording video and audio of the encounter.
- The Video: The brief clip shows an unidentified man walking with a distinctive gait across the bridge. Due to the distance and camera resolution, facial features are obscured.
- The Audio: A crisp, authoritative voice commands, "Down the hill." This audio clip was released to the public in April 2019, prompting thousands of new tips.
- The Image Quality: The popular internet fascination with "crime scene photos" often conflates the actual police evidence files with the grainy stills extracted from this phone video. The actual evidentiary files remain heavily restricted by court protective orders to protect the dignity of the victims.
Investigators utilized these digital assets for over five years, publishing updated sketches of the suspect as witness recollections evolved. The public release of the "Bridge Guy" video footage remains one of the most effective uses of crowd-sourced investigative leads in recent history.
The Arrest and Trial of Richard Allen
For years, the investigation faced criticism over perceived missteps and a lack of public updates. A massive administrative oversight buried a tip containing Richard Allen's name for more than five years; Allen had walked into a local conservation department office days after the murders to report that he was on the trails that afternoon.
In October 2022, investigators rediscovered this early report and executed a search warrant on Allen's Delphi home, seizing firearms and electronic devices. Allen, a local pharmacy clerk, was arrested and charged with two counts of murder.
During the fall 2024 trial, prosecutors presented a circumstantial case built on:
- Allen's admission that he was on the Monon High Bridge wearing clothing matching the suspect's description at the exact time of the abduction.
- The unspent bullet found between the victims' bodies, tied to his firearm through microscopic toolmark analysis.
- Dozens of recorded jailhouse confessions made by Allen while awaiting trial, during which he allegedly admitted to committing the murders, though his defense team argued these statements were the result of severe mental decline caused by prolonged solitary confinement.
In October 2024, a Carroll County jury found Richard Allen guilty of two counts of murder during the commission of a kidnapping.
Common Misconceptions About the Evidence
True crime discussions online frequently misrepresent the facts surrounding the Delphi case. Correcting these misconceptions provides a clearer picture of what actually occurred:
- Myth: Police released graphic crime scene photos to the public. Fact: Official crime scene photographs have never been publicly released. Unauthorized leaks have occasionally surfaced on fringe internet forums, but official case files remain sealed under court order.
- Myth: The killer left a complex signature or ritualistic symbols. Fact: Trial testimony confirmed that the crime was an opportunistic abduction and murder, devoid of elaborate ritualistic elements promoted by online speculation.
- Myth: Multiple perpetrators were definitively involved. Fact: While investigators initially explored the possibility of multiple actors, the state prosecuted Richard Allen as a sole offender, presenting no evidence of active accomplices during the trial.
Frequently Asked Questions
What did the actual crime scene photos show?
Official crime scene photos depicted the wooded embankment along Deer Creek where the victims' bodies were discovered, along with nearby footprints, clothing items, and the immediate terrain. These images were presented exclusively to the jury and court officials during the 2024 trial.
Why did it take over five years to arrest Richard Allen?
A clerical error in 2017 misfiled Allen's self-reported statement that he was on the trails at the time of the murders. The tip sat unnoticed in a local archive until investigators conducted a comprehensive file review in 2022, which brought Allen back onto law enforcement's radar.
Was DNA evidence used to convict Richard Allen?
No. The primary physical evidence linking Allen to the crime scene consisted of an unspent cartridge matched to his personal firearm through toolmark analysis, combined with his own admissions of being at the trail and circumstantial witness testimony.
Where can I read the official court documents?
Publicly available motions, charging documents, and trial transcripts can be accessed through the Indiana Courts Public Access portal by searching for Carroll County case records.
