The trial of Cristhian Bahena Rivera, who has been accused of killing Mollie Tibbetts in July 2018, has been set for Sept. 3 in Poweshiek County.

Authorities charged Bahena Rivera with first-degree murder after he reportedly confessed to following Tibbetts and abducting her while she was on a run on July 18 near Brooklyn, Iowa.

RELATED: How the death of UI student Mollie Tibbetts became a national story

Bahena Rivera, an undocumented immigrant who was a farm hand at Yarrabee Farms, has pleaded not guilty to first-degree murder. According to an affidavit from the Poweshiek County Sheriff’s Office, Bahena Rivera led authorities to a cornfield where Tibbetts’ body was found.

Bahena Rivera’s trial had originally been set to begin April 16. Prosecutors proposed a July 29 date, and then Judge Joel Yates decided on the September date.

If convicted, Bahena Rivera will face life in prison.