CENTREVILLE, Mich. (AP) — Southwestern Michigan authorities say they will keep questioning a man who pleaded guilty in the cold case slaying of an 11-year-old girl to see what he knows about other crimes.

The Sturgis Journal reports no complaints have been filed since Daniel Furlong pleaded guilty last month to second-degree murder in the death of Jodi Parrack. Her body was found Nov. 8, 2007, in Constantine Township Cemetery.

Still, St. Joseph County Prosecutor John McDonough says investigators cannot rule out Furlong’s involvement in other crimes. McDonough adds they will ask him “about every possible situation we can.”

The state police took over the investigation in 2011 into Jodi’s death. DNA taken after Furlong was arrested in a separate sexual assault case matched evidence found on Jodi.

Furlong faces up to life in prison when he’s sentenced Jan. 11.