(Florence, OR)  --  Police are investigating a crash that left a 92-year-old man dead in Lane County.  Authorities say the wreck happened on Highway 101 north of Florence around 8:45 yesterday morning.  Troopers say a vehicle driven by 92-year-old Eugene Weigant crossed the center line and slammed into a van driven by 23-year-old Tanner Dickinson.  Weigant died later at a hospital, and Dickinson suffered minor injuries.