A Tennessee man was charged Wednesday with kidnapping and killing a 20-year-old nursing student almost three years after she disappeared without a trace. The suspect, Zachary Rye Adams, 29, was held without bond on charges of the kidnapping and first-degree felony murder of Holly Lynn Bobo who disappeared in April 13, 2011. The charges were the first official word that Bobo was believed to be dead. Prosecutors said they could seek the death penalty. Bobo — a cousin of country music star Whitney Duncan who was studying nursing at the University of Tennessee-Martin — vanished from her home located about halfway between Memphis and Nashville.