OPP have identified the man who died in a fatal highway collision on Highway 144.  Police say a 33-year-old man from Woodstock died when his vehicle crossed the centre line and crashed into an approaching pick-up truck.  The driver of the pick-up and her passenger were treated for non-life threatening injuries.  The fatal collision happened Sunday afternoon and OPP are working on what caused the Woodstock vehicle to cross the centre line.