One person is dead and three other people – including a child – were injured in an accident last night in Robinson Township.  The crash occurred just after 8:30 in the 47-hundred block of Campbells Run Road.  Four people were involved in the crash.  The Allegheny County Medical Examiner’s office was called to the scene. Two adult victims were taken to Allegheny General Hospital for treatment, and the child went to Children’s Hospital. No word on their conditions. Officials have not yet said what caused the crash.