20-Year-Old From Massachusetts Driver Killed In Richfield Crash RICHFIELD SPRINGS – Troopers today identified Kaitlin A. Mercier, 20, of Huntington, Mass., as the driver who was killed at 7:30 a.m. Thursday in a single-car crash on Route 20 at Brighton Corners, Town of Richfield. An autopsy is pending. Mercier and the single passenger in the car, Amanda Conley, 22, of Brattleboro, Vt., were en route home from a visit to Niagara Falls, police said. Conley broke her right leg, and…