St. Louis ? A former pizzeria manager accused of kidnapping two Missouri boys, one of whom was missing for more than four years, will plead guilty next week to kidnapping, attempted murder and sexual assault, a prosecutor said Friday.

Washington County prosecutor John Rupp said Michael Devlin will plead guilty to all charges there in the 2002 kidnapping of Shawn Hornbeck and will be sentenced Tuesday.

Devlin was arrested in January after police found Shawn and Ben Ownby at Devlin’s apartment in the St. Louis County town of Kirkwood.

Loyd Bailie, Ben’s uncle, told The Associated Press on Friday that the family had been briefed by prosecutors that Devlin will plead guilty next week in all four jurisdictions where he is charged: three Missouri counties and federal court. He said he did not know whether Devlin would plead guilty to all of the more than 80 felony charges against him, several of which carry life sentences.

“This is a great day,” Bailie said. “Just knowing that Ben is not going to have to relive all this through the court system – this is cloud nine.”

Rupp said he could not comment beyond his own county, but St. Louis County prosecutor Bob McCulloch made a surprise announcement Friday of a series of hearings early next week to end the cases in all four jurisdictions. He did not specify the purpose for the hearings, and his office did not return several phone calls seeking comment.

Ethan Corlija, Devlin’s attorney, said, “I can tell you, disposition usually means, among lawyers, that things will be concluded in some manner.” He declined to elaborate.

U.S. Attorney Catherine Hanaway declined to comment. Franklin County prosecutor Robert Parks did not return phone calls seeking comment.

Shawn was 11 when he went missing while riding his bike near his Washington County home in 2002. Ben, 13, had been missing four days after being abducted after getting off a school bus in Franklin County.

A tip from a classmate describing a white pickup truck speeding from the scene led police to Devlin. Investigators were stunned when they found Ben inside the apartment with Shawn, who by then 15.

Shawn had lived with Devlin for years, telling neighbors he was the man’s son.

Devlin, 41, was arrested Jan. 12. He is jailed in Franklin County and has pleaded not guilty.