DAYTON, Ohio – A plane carrying a wing walker crashed at an air show and exploded into flames Saturday, killing the pilot and stunt walker instantly, authorities said. The crash of the 450 HP Stearman happened at around 12:45 p.m. at the Vectren Air Show at Dayton International Airport. No spectators were hurt. A video posted on WHIO-TV shows the plane turn upside-down as the performer sits on top of the wing. The plane then tilts and crashes to the ground, erupting into flames as spectators screamed. Ian Hoyt, an aviation photographer and licensed pilot from Findlay, was at the...