Capturing Their Killer: The Girls on the High Bridge on Hulu: The Arrest of Richard Allen
The third episode of the documentary series sheds light on the breakthrough in the five-year-old case of the murders in Delphi
What is the series about?
Capturing Their Killer: The Girls on the High Bridge (Hulu, 2025) focuses on the tragic case of 14-year-old Liberty 'Libby' German and 13-year-old Abigail 'Abby' Williams, who were murdered in February 2017 in the small town of Delphi, Indiana. Particularly, the series' third episode, 'A Killer in Focus', closely examines the dramatic turning point in the investigation when police in 2022 turned their attention to local citizen Richard Allen. The series utilizes the shocking video and audio recordings that Libby German managed to capture on her mobile phone of the perpetrator while they were on the Monon High Bridge shortly before their deaths.
The real case
The real case behind the documentary began as one of the most talked-about true crime mysteries in the U.S. in recent times. For over five years, the police were at a standstill, even though they possessed an audio file in which a man says the words 'Down the hill'. The breakthrough came when investigators revisited old witness statements and identified Richard Allen, who worked at the local CVS pharmacy. During a search of his home, police found a firearm that could be ballistically linked to an unspent cartridge found between the two girls' bodies. The case has been marked by significant public debate, especially after Allen's defenders claimed he was innocent and suggested alternative theories of ritual sacrifices carried out by other local groups.
Timeline of the case
The investigation into the murders in Delphi spanned several years with thousands of leads that led to nothing concrete. From the first released images of 'Bridge Guy' in 2017 to the final conviction, the community in Indiana has been marked by fear and distrust. The documentary shows how police focus shifted from external suspects to a man who had always lived and worked in the middle of town. In 2024, Richard Allen was convicted of the murders, although his family and wife, Kathy Allen, continue to appear in the documentary and maintain his innocence, citing procedural errors in the investigation.
Watch the series
The series can be streamed on Hulu and offers a unique insight into the technical evidence, including ballistic examinations and the controversial jailhouse confessions that Richard Allen allegedly made during his detention. For viewers following true crime, this production provides a necessary update on a case that had long been considered unsolvable.