11/01/2010 08:07 am ET Updated May 25, 2011

William Curl, Man Charged In Toni Keller's Murder, Could Face Death

DEKALB, Ill. — An Illinois man may face the death penalty if convicted in the slaying of a college freshman who went missing earlier this month.

William Curl is jailed on $5 million bail in the death of Northern Illinois University freshman Antinette "Toni" Keller. The 34-year-old Curl of DeKalb appeared in court Saturday via closed-circuit TV.

He has been charged with first-degree murder, criminal sexual assault and arson.

DeKalb County Judge James Donnelly told Curl about the death penalty possibility in court.

The 18-year-old Keller was last seen Oct. 14. Two days later, burned human remains were found in a park near the university in DeKalb, 65 miles west of Chicago.

Police haven't positively identified the remains as Keller's, but her case is now a homicide investigation.