State Rep. Bryan Posthumus arrested on suspicion of drunk driving after rollover crash Updated 9:59 AM; KENT COUNTY, MI - State Rep. Bryan Posthumus was arrested Friday for suspicion of operating while intoxicated, according to a news release issued by a representative for the lawmaker. Posthumus, R-Cannon Township, crashed his Jeep while leaving his farm in Oakfield Township Friday evening, according to the Saturday, May 1 release, going off the road, hitting a mailbox and then rolling over in Ada Township. He was arrested and taken to a nearby hospital to evaluate potential injuries, then released that night pending an investigation, according to the release.