OCALA - New details emerged in court Tuesday about an Ocala man charged with illegal possession of ricin, a deadly toxin that can be used for bioterrorism. A search of Steven Michael Ekberg's home computer turned up terrorism-related materials, an FBI agent testified at a preliminary hearing in Ocala. Ekberg, 22, was arrested Jan. 13 and charged with illegal possession of ricin, a toxin with no known antidote and so lethal that an amount the size of pinhead can kill. FBI Special Agent Pamela Piersanti testified Tuesday that investigators seized Ekberg's computer at the time of his arrest. They found...