The FBI is offering a $10,000 reward for information in the case.
Riley disappeared in June 2004 from her Wilmington home. Her partially clad body was found in Forked Creek near the Forsythe Woods Forest Preserve that same day.
Riley's father, Kevin, was wrongly accused in her murder. After 8 months, he was cleared by DNA tests. In 2007, the Fox family was awarded $15.5 million in a civil suit with Will County authorities.
"The FBI needs to start completely over and find the pedophile who killed Riley. The focus on the Fox family has been a complete waste of time because DNA has cleared all of them," said Zellner.
According to a Will Co. state's attorney spokesman, the office has been in discussions with the FBI about joinng the case for 18 months. Agents have had files to review for the last year.
On Wednesday, FBI agents canvassed the Wilmington neighborhood where the Fox family used to live. Download FBI flyer
