The father of slain Iowa student Mollie Tibbetts received a robocall last week in which a white nationalist called her family members traitors to their race. Her father, Rob Tibbetts, thinks he was among the first to receive the message, which claimed if Mollie could be brought back to life, she would say of immigrants, “Kill them all,” the Des Moines Register reports. “It was unbelievably painful,” Tibbetts told the newspaper. Mollie Tibbetts was found dead Aug. 21, her body hidden in a cornfield in rural Poweshiek County. Authorities charged farmhand Cristhian Bahena Rivera, 24, with first-degree murder, and said he lived in the U.S. illegally. He confessed to abducting Mollie while she was on a run on July 18, just outside of her hometown of Brooklyn, officials said.