LANCASTER COUNTY – A Marietta man and Hempfield High School football coach has been charged with corruption of minors and harassment regarding an incident that took place on October 7, 2021. 25-year-old Thomas Walker faces first-degree and third-degree misdemeanors. West Hempfield Township Police received a complaint from a 16-year-old girl and her parent that she received inappropriate messages from Walker via SnapChat. Walker admitted that he sent the messages, but said he did so by mistake.