A trial for the former Hilliard Davidson High School student accused of plotting a mass shooting at the school has been continued to May 7, according to Franklin County Court of Common Pleas records. John Leonard Staley III was arrested in October 2016 and charged with a delinquency count of conspiracy to commit murder after another Davidson student told a school resource officer Staley was discussing the plot while on a school bus, according to Franklin County Prosecutor Ron O'Brien. The continuance was not unexpected...