CHICAGO (WLS) -- The longtime chief of staff for former Illinois House Speaker Michael Madigan has begun his prison sentence.
Tim Mapes was required to surrender to the Bureau of Prisons before noon.
His attorney confirmed he turned himself in to authorities Tuesday.
Last year, a jury found the 69-year-old Mapes guilty of lying to a federal grand jury when answering questions about a broader investigation into Madigan and others.
He was sentenced to 30 months in prison.
The website for the Federal Bureau of Prisons shows he's in Pensacola, Florida at a minimum security federal prison camp.
RELATED: Mike Madigan confidant Tim Mapes sentenced to 2.5 years in prison in perjury case
Madigan is scheduled to go on trial in October for bribery and racketeering.