DELPHI, Ind. — After nearly three weeks of testimony, closing arguments begin Thursday in the Delphi murders trial.

Richard Allen’s defense team rested the case on Wednesday.

Allen is accused of killing Abby Williams and Libby German on a road in 2017.

The defense’s testimony lasted several days. Witnesses included psychiatrists, forensic experts and testimony from Allen’s prison surveillance videos.

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Prosecutors included Allen’s own confessions as part of the case. Jurors heard recorded phone calls from prison in which he told his wife he killed Abby and Libby.

The defense argues that Allen suffered a mental breakdown and became seriously ill when he began confessing to the murders while being held in juvenile detention center.

On Wednesday, a rebuttal witness for the prosecution testified that Allen was stable around the time he confessed.

The evidence against Allen was an unspent bullet lodged in Allen’s gun, found among the teenager’s bodies.

He admitted to police that he was on leave that day, but denied any involvement in the girls’ murders.

The judge said both sides will be given two to two and a half hours to present their closing arguments.

If convicted, Allen faces up to 130 years in prison.