 20-year-old man suffering serious injuries after a rollover crash in Greene County last night. And it is our top local story. A man accused of starting a fire at Piqua High School is in jail after a SWAT standoff. Yeah, 20-year-old Grady Edgerton has been accused of creating an explosive device that he used to catch Piqua High School on fire. WHIO's Rich Jones continues our team coverage. A spokesperson for the city of Piqua said a homemade incendiary device was detonated near the main entrance of the high school.