The Pottawattamie County Sheriff’s Office reports a man wanted on a warrant for Violation of Parole, was arrested Friday morning after he turned himself-in to the sheriff’s office. 27-year old Benjamin Wyatt Barnes, of Carter Lake, appeared at the Sheriff’s Office at around 10:30-a.m., Friday. After the warrant was confirmed, Barnes was transported to the Pottawattamie County Jail. Jail staff were advised Barnes was sometimes armed and dangerous, and that he was a sexually violent predator, known to abuse drugs. He was booked into the jail without incident.