The Rock County Sheriff’s Office is investigating a two-vehicle double-fatal crash in western Rock County  The sheriff’s office reports a Chevrolet Trailblazer was traveling north on Tuttle Road and failed to stop at Highway 14 east of Evansville about 4:30 Monday afternoon.  Deputies say the Trailblazer hit a Silverado on Highway 14.  The Trailblazer continued northeast into a farm field and rolled over.  The Silverado spun around and snapped a power pole.  Authorities say five people were ejected from the Silverado and a   male passenger was pronounced dead at the scene.  A male and female were ejected from the Trailblazer and the male later died at the hospital.  Another male passenger in the Trailblazer was also injured.  The highway was closed for more than six-hours.