An Indiana man was found guilty on Monday of killing two girls on a wooded trail in 2017 in a case that garnered national attention, spawned podcasts and riveted true-crime fans drawn to the case’s twists and turns.

The bodies of the girls, Liberty German, 14, and her friend Abigail Williams, 13, were found a day after they went missing during a hike in Delphi, Ind., a city about 80 miles northwest of Indianapolis, on Feb. 13, 2017.

Five years later, the man, Richard Allen, 52, of Delphi, was arrested and charged.

Jurors found Mr. Allen guilty of two counts of murder and two counts of murder while committing or attempting to commit kidnapping, according to The Associated Press. The jury began deliberations on Thursday.

Mr. Allen is scheduled to be sentenced on Dec. 20 and could face up to 130 years in prison.

During the trial, prosecutors told the jury that Mr. Allen planned to rape the girls.

Prosecutors also said Mr. Allen had admitted to killing the girls, including in one statement where he said he killed the girls with a box cutter.

But Mr. Allen’s lawyers cast doubt on these admissions in part by arguing that Mr. Allen suffered mentally while being held in solitary confinement, The A.P. said.