A federal judge has sentenced a Dubuque man to more than two years in federal prison for lying to a grand jury.
On May 25, 20-year-old John Gronen pleaded guilty to perjury before a grand jury. Gronen admitted he testified falsely, under oath, to a federal grand jury in January. Gronen testified he had never seen a particular sawed-off shotgun, when he had seen another person carrying it in September of last year. Gronen also testified no one was using drugs at his house on September 22, 2016, when he actually saw two people using cocaine and marijuana in his basement.
Gronen was sentenced to 27 months imprisonment. He must also serve a three-year term of supervised release after the prison term.