DES MOINES, Iowa (AP) – Documents in an unemployment benefits case show that a Council Bluffs hospital administrator resigned his post last year after his superiors refused to tell patients that surgical instruments used on them hadn’t been properly sterilized. The Des Moines Register reports that Robert Owen Burgin was a registered nurse and the infection-control specialist for Mercy Hospital in Council Bluffs. State records show he resigned April 12, 2013, after making several attempts to get permission to tell two patients they were at risk of infection from blood-borne pathogens.

Documents say a supervisor threatened his job when he persisted. The matter became public when Burgin filed for unemployment benefits and the hospital challenged his claim. A judge has ruled for Burgin, saying Burgin resigned for good cause.

SIOUX CITY, Iowa (AP) — Northwestern Iowa officials are looking for a prisoner who failed to return to a work release facility in Sioux City. Officials say 30-year-old Caleb Robert Babb was placed on escape status after failing to return to the facility Friday after working his job.

Babb, who was nine years into a 10-year sentence for second-degree robbery, had been transferred to work release on May 29. Officials are asking anyone with information on Babb’s whereabouts to report it to the Sioux City Police Department or Woodbury County Sheriff’s Department.

GLIDDEN, Iowa (AP) — A criminal complaint says DNA evidence led to the arrest of a man suspected in death of a mother and her son in western Iowa. Fifty-three-year-old Thomas Henderson, of Lake City, was arrested Thursday and charged Friday with murder. He is accused of killing 48-year-old Tammie Lee Devore and her 30-year-old son, Karl Allen Devore. Their bodies were found in their Glidden mobile home on May 18.

The Des Moines Register reports that investigators found a knife blade, a black knife handle and a knife labeled “Yoshiblade” at the crime scene. Investigators say DNA found on the knife and handle belonged to Henderson. Henderson is being held without bond at the Carroll County Jail.