Their plan was to walk the trail before being picked up to go home.

It was the last time anyone saw the pair alive.

Now, seven years later, 52-year-old Richard Allen is on trial for German and Williams murder.

FILE - Officers escort Richard Allen out of the Carroll County courthouse following a hearing, Nov. 22, 2022, in Delphi, Ind. (AP Photo/Darron Cummings, File)

Richard Allen is currently on trial for murder.AP Photo/Darron Cummings, File

Police first released a photo of a man they identified as a prime suspect in the murders.

Days later, police revealed that the photo and an additional video had been recovered directly from Germans cellphone.

This young lady is a hero, theres no doubt, Indiana State Police Sgt.

Tony Slocum said of German at the time.

But it took another five years for police to arrest a suspect.

The ammo matched a gun found at Allens home.

No cameras or audio recording devices are allowed in the courtroom.

The prosecution and defense both agree that the girls were brutally murdered.

The same can be said for enthusiasts on X (formerly Twitter).

Others have taken to implicating witnesses in the case, including members of Williams and Germans families.

This isnt the first time TikToks true crime community has banded together to try and solve a case.

Now theyve moved on to the Delphi Murders.

We want to be able to control crimes that feel out of control.

This is just the fulfillment of the fantasy thats been presented to us for decades.

Allens trial began on Oct. 18, and is expected to last a month.