South Carolina woman walking her dog killed in rare alligator attack

A community in Hilton Head Island, South Carolina, is on alert after Cassandra Cline, 45, was killed in a rare attack by an alligator on Monday. Cline was walking her dog along the edge of a lagoon in her neighborhood when the animal attacked her dog. According to one official, the woman was dragged to her death after trying to free her dog. Experts say alligators nest in the summer, which can make them more aggressive. NBC’s Kerry Sanders reports for TODAY.