Hunting ghosts at New York City's Morris-Jumel Mansion

Built in 1765, the Morris-Jumel Mansion in Manhattan served as a war room for Gen. George Washington and a home for Aaron Burr – and something may still live there. On this Halloween, "Sunday Morning" producer Sara Kugel visited, and talked with paranormal investigator Vincent Carbone, who explains the eerie "electronic voice phenomenon" that made itself known in a recording made in Burr's bedroom.