relative. it took authorities just three days to zero in on the man they believe killed husband and wife john and marion setzer with a package bomb. and now a grand jury has taken action. >> after hearing that evidence, they returned a two-count indictment of felony first degree murder, a two-count indictment of premeditated first degree murder on richard parker, age 49, son-in-law of john and marion setzer. >> reporter: richard parker, a man who was apparently married to the couple's daughter. parker is accused of delivering a package bomb on monday to his father-in-law. retired civil attorney john setzer in lebanon, tennessee. the bomb went off inside the house, killing setzer and critically injuring his wife who died two days later. >> it is an ongoing investigation. but we do feel like we have the