Delphi Murders Of Abby Williams And Libby German: One Year Later

DELPHI, IN -- What began as a walk along the Delphi Historic Trails on Monday, Feb. 13, 2017 turned into a nationwide search for the killer of best friends Abigail Williams and Liberty German. One year ago Williams, 13, and German, 14, were last seen around 1 p.m. near an abandoned railroad bridge just east of Delphi. A search for the girls began that night when family reported the girls missing, and ended the afternoon of Feb. 14, when a volunteer searcher found the girls' bodies about a half-mile from the bridge, WXIN reports.

Nearly a week into what police declared was a double homicide investigation, officials released audio they believe captured the suspect's voice. In late February 2017, Patch reported that police believed 14-year-old Liberty "Libby" German left a clue in the form of her killer's voice recorded on her cell phone. They are hoping someone who hears the clip will be able to identify the voice.

March 2017 came and went with thousands of tips coming in and the reward for information grew to over $200,000.

In July 2017, officials released a sketch depicting the man officials believe is the person of interest in the February 2017 murders.

RELATED IN THIS CASE:

• Police Release Audio Of Suspect In Murder Of Indiana Girls
• Delphi Murders: Sketch Of Suspect Released By Indiana State Police
• Break In Delphi Murders? Man Arrested In Colorado May Be Linked To Indiana Teens' Deaths
• Tip in Delphi Homicides Investigation Leads to Arrest In 2007 Cold Case
• ISP Gives Update In Number Of Delphi Murders Case Tips

News broke again in September 2017 when a tip from authorities in Colorado brought what many thought would be a major break in the investigation. El Paso County, Colorado police arrested Daniel Nations, 31, in a "menacing" incident in which Nations allegedly threatened several people with a hatchet on a Colorado hiking trail — the same trail where a cyclist was found murdered earlier that same month.

Indiana State Police officials went out west to interview Nations and look into this information, but concluded there was not enough information to either add or rule out Nations as a suspect in Libby and Abby's murders.

One year later, the case remains unsolved, but officials are confident that someone out there information that will help them solve the girls' murders.

"We are confident someone knows who was responsible for these murders and we encourage them to come forward with their tip information," ISP said in a release.

The tip phone number is 844-459-5786 and callers may remain anonymous, or tips can be sent via email to abbyandlibbytip@cacoshrf.com. ISP says more than 26,000 tips have been investigated.

Photos: Libby German (left), 14, and Abby Williams, 13/photo and police sketch of the suspect. Credit: Indiana State Police