A Brookfield woman has been arrested for hitting and killing a pedestrian in October.  75-year old Linda Pendergast was charged Thursday with negligent homicide and failure to exercise due care to avoid a pedestrian for the accident on Route 25.  58-year old Harold Trafton was killed as he was removing equipment from a trailer parked in the southbound lane.  Police say Pendergast moved into the northbound lane to go around the trailer when she hit the Danbury man.