HOLLAND (WHTC) - A 27-year-old Holland man has pleaded guilty to charges he held up a Speedway gas station on Chicago Drive May 27. Christopher Lee Walker will be sentenced August 13 after entering the plea to armed robbery and habitual offender charges Monday in Ottawa County Circuit Court. Police say Walker walked into the gas station, told the clerk on duty that he was armed and prepared to shoot if he didn’t receive all the cash in the store’s two registers. He was tracked down with the help of surveillance video from the gas station.