James Joseph Williams worked at the Creighton University pathology lab . He was arrested in the deaths of four people close to the lab . A professor and his wife were killed in May . The family of two professors was killed in March 2008 along with their housekeeper .
Anthony Joseph Garcia worked at the Creighton University pathology lab . He was arrested in the deaths of four people tied to the school . A professor and his wife were killed in May . The son of two professors was killed in March 2008 along with their housekeeper .