The two teenage girls arrested on Tybee Island for the stabbing deaths of an elderly couple are in court today. Fifteen-year-old Holly Harvey and her girlfriend, 16-year-old Sandra Ketchum are charged with the murder of Harvey's grandparents, 74-year-old Carl Collier and 73-year-old Sarah Collier.
Investigators now say that the teens had the killings all planned out, and Harvey had even written a list on her arm: "kill, keys, money and jewelry."
The girls then fled to Tybee Island where they were arrested on Tuesday. Both will be tried as adults.