John Spira, a businessman and blues musician known as "Chicago Johnny," went missing on February 23, 2007.
The family of a man missing for more than three years said Wednesday that human remains found a day earlier is giving them their first good lead into the disappearance.
Tom Spira said the remains were found about nine miles from where his brother worked and about three miles from the home of the person they suspect killed him.
A spokesman for the DuPage County Coroner's Office said Tuesday that the bones had been in the preserve for a long time.
John Spira, a businessman and blues musician from St. Charles, went missing February 23, 2007. His office at West Chicago Universal Cable Construction inexplicably burned to the ground seven months later.
His disappearance was profiled on the television program America's Most Wanted.
Police have not named a suspect or a person-of-interest in the case, nor have they classified his disappearance as a homicide.