- Southampton Town police arrested Amanda DaCosta, 23, of Riverhead, after she allegedly struck three pedestrians and a house and then fled the scene on Jan. 8. According to police, DaCosta was driving a 2002 Hyundai Elantra on Riverside Avenue in Flanders shortly after midnight when she struck the three victims and the house. That’s when police said she left the accident without exchanging any information. Police caught up with DaCosta on Old Westhampton Road in Northampton about four hours later and arrested her. She was charged with leaving the scene of an accident that caused personal physical injury, a misdemeanor.