LE MARS, Iowa (AP) – A trial has been delayed for a 44-year-old northwest Iowa man accused of killing his mother. Court records say the trial of Jonathan Neunaber had been scheduled to begin Dec. 9. A new trial date hasn’t been set.

Neunaber has pleaded not guilty to a charge of first-degree murder in the July slaying of Esther Neunaber. Her body and that of her husband, 83-year-old Donald Neunaber, were found July 9 in the Akron home they shared with their son.

Authorities say Donald Neunaber died of natural causes. An autopsy determined that his wife died of blunt force injuries. Court documents say Jonathan Neunaber told investigators that he killed his mother on or about June 26.