DAVENPORT, IA - On April 18, 2017, William John Boom, age 65, from Davenport, Iowa, pleaded guilty to making false statements to a federal grand jury, announced United States Attorney Kevin E. VanderSchel. This charge carries a maximum potential penalty of not more than five years of imprisonment, up to a $250,000 fine, a term of supervised release of not more than three years, and a $100 special assessment to the Crime Victims’ Fund. Sentencing is scheduled for August 24, 2017, at 2:30 p.m.