The son of accused wife-killer Drew Peterson has been suspended for hiding his father's AR-type rifle around the time of the disappearance of his wife Stacy.

Stephen Peterson, a 6-year veteran of the Oak Brook (Ill.) PD, was put on paid administrative leave Friday, the Sun-Times reports.

In court testimony, Stephen Peterson admitted taking possession of an AR-15 and at least one other weapon his father did not want the state police to get their hands on.

From the witness stand Monday, Stephen Peterson recalled that on Oct. 30, 2007, Drew Peterson showed up at his son's North Aurora home with two or three guns. The weapons were among his father's "favorites," Stephen Peterson said, and "he didn't want anything to happen to them."

Peterson's fourth wife, Stacy, was reported missing the day before Drew Peterson's visit to his son's home. Her whereabouts remain a mystery, and the state police suspect Drew Peterson killed her.

Drew Peterson was arrested and charged him with murdering his third wife, Kathleen Savio, who was found drowned in a dry bathtub in March 2004. He has also been charged with possessing a rifle with a barrel shorter than the 16-inch state-mandated length.

Read the full story at Pioneerlocal.com.