(Portland, OR)  --  Two people are dead from injuries they suffered in separate weekend roadway accidents.  Sara Brown died Saturday afternoon when the car in which she was riding made a turn at an intersection on Highway 99W and was broad-sided by another car.  Later the same evening, William Isakson died when his car veered into the opposite lane on Route 212, colliding with an oncoming car.  Responders say there were two others injured in the crashes.