OPP allege an argument between two strangers in a Walmart parking lot in Midland has ended with one of the two using his car to hit and kill the other. It was just before 2 p.m. when 29-year-old Corby Stott, a mechanic with two children, was hit by a vehicle following an argument. The accused, Jason Heffernan, 25, of London, is behind bars and will appear in court Wednesday in Barrie.