Jared Scheierl was abducted 9 months before Jacob Wetterling.
The Stearns County Sheriff's Office hit back after a former FBI agent held a press conference.
Tens of thousands of documents have been released on Thursday.
The investigative documents will go public on Thursday.
The release of the files has been subject to legal challenges.
Jacob's parents say some of the documents are an invasion of privacy.
A judge granted an extension because "new issues" have arisen.
The Wetterling family has until Friday to tell a judge which information they want holding back.
Her son, Jacob Wetterling, was abducted and murdered in 1989.
The files were due to be released on Monday.
"In the Dark" looked at mistakes made in the 27-year investigation into Jacob Wetterling's disappearance.
Danny Heinrich's house is being sold to a developer, but he has no intention of doing anything but destroy it.
Danny Heinrich admitted to killing Jacob Wetterling in exchange for fewer charges.
"He may have 'shed countless tears' but not one tear was shed when he stood in the courtroom telling us what he did to Jacob."
The goal of the event is to capture the sadness, helplessness, yet strong energy that Minnesotans have each year on October 22nd.
Jacob's parents, Patty and Jerry Wetterling, released a video through the Jacob Wetterling Resource Center.
Thousands of mourners joined the Wetterling family to remember the beloved 11-year-old.
Gov. Dayton declared the anniversary of the 1989 abduction 'Jacob Wetterling Day.' A memorial service is being held Sunday in St. Joseph.