Here is the latest Iowa news from The Associated Press at 3:35 a.m. CDT

IOWA CITY, Iowa (AP) — The son and boss of an Iowa grandmother charged in a 1992 slaying say that they were stunned by her arrest and confident that she’s not the killer. Authorities arrested 55-year-old Annette Cahill two weeks ago, charging her with first-degree murder in the 1992 beating death of her friend Corey Wieneke. Cahill’s boss at the Police Law Institute says “this is not the person that I know.”

MINNEAPOLIS (AP) — Environmental Protection Agency chief Scott Pruitt is being met deep in the heart of Trump country with protests by farmers and ethanol producers concerned that he is undermining the industry with his strong support of oil and gas. Their unhappiness is being broadcast on billboards, at rallies and in meetings the EPA chief is holding during a tour of heartland states. It comes as Pruitt battles a series of allegations of ethical misconduct back in Washington.

DUNKERTON, Iowa (AP) — Authorities say they have closed an investigation into the death of a child in northeast Iowa after an autopsy shows she died of natural causes. The Black Hawk County Sheriff’s Office announced Thursday it has closed the investigation into the death Wednesday of a 6-year-old girl from Dunkerton. The sheriff’s office says an autopsy showed she died after an appendicitis.

AMES, Iowa (AP) — Heavy rain has washed over much of Story and eastern Boone County, prompting flash flood warnings. The National Weather Service issued a warning Thursday morning after more than 4 inches of rain had fallen and 2 more inches had been forecast. The deluge caused street flooding across the Iowa State University campus and elsewhere in Ames, stranding some vehicles and their drivers. A flash flood warning also has been issued for Calhoun, Humboldt, Pocahontas and Webster counties.