BOLLINGBROOK, Ill., May 11 (UPI) -- A former Illinois police sergeant charged with his third wife's death is being persecuted by an overzealous prosecutor, a defense lawyer said.

JOLIET, Ill., March 6 (UPI) -- Illinois prosecutors offered immunity 17 months ago to a man whose testimony they sought in the case of a missing suburban Chicago woman, a document reveals.

JOLIET, Ill., Dec. 31 (UPI) -- An official in Will County, Ill., says the new year should bring about new evidence in the cases of former police officer Drew Peterson's last two wives.

SPRINGFIELD, Ill., Nov. 20 (UPI) -- The Illinois House has given final approval to a measure that may result in ex-police officer Drew Peterson being prosecuted on homicide charges.

CHICAGO, Oct. 23 (UPI) -- Prosecutors in Illinois say "highly productive" investigations soon will enable them to determine exactly what happened to one of Drew Peterson's wives.

BOLINGBROOK, Ill., Jan. 1 (UPI) -- Drew Peterson, whose wife vanished more than two months ago in Illinois, says his wife likely ran off with another man.

HILLSIDE, Ill., Nov. 13 (UPI) -- The body of the third wife of an Illinois police officer was exhumed Tuesday as the search continued for his fourth wife.

BOLINGBROOK, Ill., Nov. 10 (UPI) -- The body of Sgt. Drew Peterson's third wife will be exhumed and autopsied as suspicion grows about the police officer from Bolington, Ill.

CHANNAHON, Ill., June 23 (UPI) -- A Chicago-area man was charged Saturday in the shooting deaths of his wife and their three children.