Will County State's Attorney James Glasgow said the potential new information could possibly aid police in their investigation of Stacy Peterson's 2007 disappearance and the death of Kathleen Savio in 2004, the Chicago Sun-Times reported Wednesday.
"I'm very positive. I'm very encouraged by the work the police have done,'' Glasgow said Tuesday. "We are not at a dead end by any stretch of the imagination.''
Glasgow confirmed the grand jury investigating both cases during the last 14 months will meet in January.
The attorney's comments come months after Glasgow predicted in October that a resolution to one of the cases was likely to come about in the near future, the Sun-Times said.
The newspaper said Drew Peterson, a former police officer in Bolingbrook, Ill., has been a person of interest in the cases of Savio and Stacy Peterson, his third and fourth wives respectively.