Jamie O'Driscoll and his newphew Connor Hebert, 7, and his twin sister Khloe Hebert, 7, cast themselves into the cold waters off of Gooseberry Island in Westport, MA for the annual Plunge of the Faithful in memory of Jamie's sister Shannon O'Driscoll, 24, who was killed November 2006 when she was struck by an SUV in Plainville, MA while holding a sign supporting state daycare centers.