John Seldon is a 48-year wastewater careerist. He began with the R&D department of the Ontario Water Resource Corporation in 1972. He left to become Superintendent of the Barrie WRRF in 1975 and in time became an independent contractor specializing in dewatering wastewater residuals. Over his career John has written many articles on process treatment while also strongly advocating for hiring professionally certified technologists as operators. John earned his B.Sc. from the University of Guelph and completed a mid-career Master's in Urban and Regional Planning from the University of Waterloo. He writes and speaks on his career field to all who will listen. John lives in the village of Port Burwell in Ontario, Canada. Murder in the Primary is his first work of fiction.