A Marinette man will serve prison time for his fourth drunk driving conviction. 64-year-old Stephen Fifarek was sentenced to 18 months initial confinement and two years’ extended supervision Friday for his fourth OWI. Fifarek had plead no contest to the charge. He will receive credit for 147 days already served. Fifarek was arrested in June of 2017 after he was suspected of driving drunk within the City of Marinette. A blood test showed his blood alcohol content at the time was point-one-four-two.